I just successfully completed this with linux mint and XP works great thanks!
Just wondering what GTK theme is that and where can i get it and the wallpaper you are using it looks great :)

Wonderfull!

The theme I use is Moomex and you can download it from here -> http://linux.softpedia.com/get/Desktop-Environment/Themes/Moomex-Theme-31855.shtml

And the wallpaper is here -> http://gnome-look.org/content/show.php/GNOME HD?content=74152

Question which would make a better host.... Linux or Windows, presently i use only use windows apps ... so windows would have to get the largest chunk of the resources.... in my view however... Linux is better security wise... and prolly a more stable platform....


whats your take

Would this work using Windows XP already installed from dualboot environment, so i dont have to install fresh copy of Windows?

No, sorry! You must install a fresh copy of Windows XP, only that it will not be a real computer installation, it is a virtual installation, inside Linux (Ubuntu or other distributions). So you can keep your existing Windows XP installation and install a fresh copy on a Linux machine.

Is that possible with ubuntu 7.10 guest in windows host system?

Yes, it is possible!

Very elegant.:))
I have never used VB because I have heard/read that it has problems with samba shares.
Is this the case and if not how do I get the shares to work?
Can I use my existing and working smb.config?

Also, can I import a vmware xp machine into a VB environment?

Thank you for any help.

Thanks!

VirtualBox has it's own built-in file sharing technology. So, with a simple click, you can enable it and share files between your Linux box and the virtual windows machine.

And yes, it imports .VMDK (VMware Virtual Disk) files :)

You're welcome!

Just a couple of questions/concerns before I'm "converted"::

(1) Is it legal? Windows is often very picky or unreasonable about Windows installs.

(2) Speed? Is it usable? Can I actually "work" in the virtual windows? The only reason I would want to do this is for some obsure app that doesn't play nice with wine. So if it's slow, that would defeat the whole purpose...

Hi!

1) Yes, as long as your copy of Windows is not OEM.

2) On the hardware that I've recommended (1 GB RAM/Core 2 Duo) it works just fine, no problems what so ever. And you got the wrong idea about the whole guide.... Wine has nothing to do with this guide! It's pure Windows, pure Windows applications... that run on a virtual computer :)

lol this works very well in any situation as long as you set up the box right and ive got it running 64studio and windows vista on my windows xdp machine perfectly only problem is i dont get to do seamless mode with 64studio cuase the guestaddons dont work with it lol oh well it works perfectly with vista tho and runs smoothly whatever you do my only problem is i need more ram to get vista running better sence ive got it set to 601 mbs for it and only 512 for 64studio. oh well not a issue as long as i have my program that runs to clean up my ram every now and then to keep my xp from locking up on me

Thanks for this guide. I am running this on PCLinuxOS 2007. VirtualBox was in their repos. The rest worked like a champ.
Thanks!

Question: Could the (virtual) Windows OS be loaded in seamless mode and added to a domain without adversly affecting login?

Thanks,
Mongoos
"Windows Sys Admin that recently fell in love with Linux"

I haven't tried it (because I can't :) ), but I've heard it will work without problems.

Does it work with Mandriva? 2007? 2008?

J.

I setup VB as per
"http://news.softpedia.com/news/Unite-Windows-and-Linux-With-a-Single-Mouse-Click-78535.shtml"
I started the install of XP which loaded up and got to restarting the pc 1st time and VB aborts

here is the last few lines of the log.. Any suggestions most welcome..

===================================================

4770:24:01.030 ******************** End of CPUID dump **********************
4770:24:01.078 TM: cTSCTicksPerSecond=0x77386e78 (2000187000) fTSCVirtualized=true fTSCUseRealTSC=false fMaybeUseOffsettedHostTSC=false
4770:24:01.177 CoreCode: R3=b372c000 R0=e0d99000 GC=a01df000 Phys=00000000192ec000 cb=0x2000
4770:24:01.190 VMMR0.r0 module loaded. VMMR0Entry located at e0e332f0.
4770:24:01.203 Activating Local APIC
4770:24:01.203 PIT: mode=3 count=0x10000 (65536) - 18.20 Hz (ch=0)
4770:24:01.204 Shared Folders service loaded.
4770:24:01.415 PIIX3 ATA: LUN#0: disk, CHS=12497/16/63, total number of sectors 12597248
4770:24:01.415 PIIX3 ATA: LUN#1: no unit
4770:24:01.426 PIIX3 ATA: LUN#2: CD/DVD, total number of sectors 194496, passthrough disabled
4770:24:01.426 PIIX3 ATA: LUN#3: no unit
4770:24:01.426 PIIX3 ATA: Ctl#0: finished processing RESET
4770:24:01.426 PIIX3 ATA: Ctl#1: finished processing RESET
4770:24:01.529 NAT: passing domain name aeic.local
4770:24:01.529 NAT: DNS address: 192.168.16.2
4770:24:01.530 Audio: Trying driver 'oss'.
4770:24:01.530 Audio: set_record_source ars=0 als=0 (not implemented)
4770:24:01.530 OSS: Successfully opened /dev/dsp for ADC
4770:24:01.531 OSS: Successfully opened /dev/dsp for DAC
4770:24:01.579 Changing the VM state from 'CREATING' to 'CREATED'.
4770:24:01.579 Changing the VM state from 'CREATED' to 'RUNNING'.
4770:24:02.813 Guest Log: BIOS: VirtualBox 1.5.4
4770:24:02.814 PIT: mode=2 count=0x10000 (65536) - 18.20 Hz (ch=0)
4770:24:03.205 PIT: mode=2 count=0x48d3 (18643) - 64.00 Hz (ch=0)
4770:24:03.205 Display::handleDisplayResize(): uScreenId = 0, pvVRAM=00000000 w=720 h=400 bpp=0 cbLine=0x0
4770:24:05.343 PIT: mode=2 count=0x10000 (65536) - 18.20 Hz (ch=0)
4770:24:05.344 PIIX3 ATA: Ctl#0: RESET, DevSel=0 AIOIf=0 CmdIf0=0x00 (-1 usec ago) CmdIf1=0x00 (-1 usec ago)
4770:24:05.468 PIIX3 ATA: Ctl#0: finished processing RESET
4770:24:05.470 Guest Log: BIOS: ata0-0: PCHS=12497/16/63 translation=lba LCHS=784/255/63
4770:24:05.471 PIIX3 ATA: Ctl#1: RESET, DevSel=0 AIOIf=0 CmdIf0=0x00 (-1 usec ago) CmdIf1=0x00 (-1 usec ago)
4770:24:05.669 PIIX3 ATA: Ctl#1: finished processing RESET
4770:24:05.671 Guest Log: BIOS: Boot from Floppy 0 failed
4770:24:05.675 Guest Log: BIOS: Booting from Hard Disk...
4770:24:11.354 Guest Log: BIOS: int13_harddisk: function 15, unmapped device for ELDL=81
4770:24:23.775 PIT: mode=2 count=0x2ead (11949) - 99.85 Hz (ch=0)
4770:24:23.991 Display::handleDisplayResize(): uScreenId = 0, pvVRAM=aee25000 w=640 h=480 bpp=0 cbLine=0x140
4770:24:27.670 PATM: Disable block at 80eabacc - write 80eabb00-80eabb04
4770:24:30.188 PIIX3 ATA: LUN#0: IDLE IMMEDIATE, CmdIf=0xc4 (-1 usec ago)
4770:24:30.189 PIIX3 ATA: LUN#0: aborting current command
4770:24:43.676 Display::handleDisplayResize(): uScreenId = 0, pvVRAM=aee25000 w=640 h=480 bpp=32 cbLine=0xA00

=======================================================

All I can think of os Xp is trying to resize the screen which VB changes window sizes from a letterbox to a 4.3 screen windowed.

I would love to get this working Help please

regards

Voncile..

Hi,

that's very strange, it shouldn't happen.... Anyway, VB 1.5.6 was released today, so I suggest to upgrade and try the tutorial again.

Here's the download link:

http://linux.softpedia.com/get/System/Emulators/VirtualBox-23194.shtml

For Jean Sagi: Yes it works in Mandriva 2008

Get the RPM archive from here:

http://linux.softpedia.com/progDownload/VirtualBox-Download-23194.html

Just wondering.

Do you need to install antivirus, spyware, firewall software within windows or does linux take care of that when it runs in a virtual box?

Linux takes care of everything!

Yes, you absolutely MUST be careful about viruses and other trash when dealing with windoze. Note that windoze viruses won't be able to affect your running linux, but your virtual machine can become corrupted by them. Linux will NOT protect your windoze virtual machine from what you expose it to.

its a very nice software. it help us to operate both operating systems at the same time.

interface simple

it is very good

Nothing happens when I do the Devices -> Install Guest Logins. Can you tell me why. Thanks.

Because you don't have an active Internet connection on the virtual machine.... set it up first and then try to install the Guest Additions...

Network stuff don't work very well (only NAT). But it is enough for internet.
When I create some directory share, I must manually mount in XP (I expect it automatically, because it is easy to code...only one line...yes, it write in help line, when create share...).
And I have registration message, because it is not free VirtualBox (free is that from repository, where I has Tool addition installation problem).

What are the performance differences between running vista in this virtual box and just natively? Are there any except running ubuntu, and the ram that it takes up? This looks really cool, but I would like to know about this before I do it and install Steam so I can play games properly on linux, rather than wine!

Will it even work on vista?

If you have a LOT (3-4 GB) of RAM, I guess it will work :)

Can this be done on a laptop running Windows XP Pro and adding the virtual box with SUSE 10.3 to have both system integrate seamless as one?

Thanks

Yes I think so... try it!

I have put XP in a virtual machine in a laptop that runs suse linux enterprise desktop. However, XP is not recognizing my USB drive - it is not listed under Device Manager. Any solutions to this?

Thanks

I've installed XP SP2 into Ubuntu Ultimate Edition 1.7 and I could not unite Linux and Windows desktops into a single one. I can see them only one at a time. Moreover, I cannot see the other partitions when I am on Windows desktop

Hi, I am naman, I am new for Linux.

I am running on fedora 8
and downloaded & installed
VirtualBox-1.5.6_28266_fedora8-1.i586.

it was not .deb file.

then in the terminal given the command
sudo adduser naman vboxusers

it prompted me for password, I've given
I got error:
naman is not in the sudoers file. This incident will be reported.

what is the problem & what should I do?

Open a terminal and switch to root with:

su -

enter the root password, then run the following command:

adduser naman vboxusers

It should work!

I thoroughly disagree that VirtualBox does not play nice with Compiz Fusion. In fact, I'm running the Compiz cube on my Debian notebook right now; this browser in which I'm typing my post is on one face of the cube, and I'm running Windows XP on the other face. If anyone is having issues then it may be a configuration issue with either Compiz or your X server.

On the other hand, nice article! VirtualBox runs so much faster than VMWare, plus it's free.

This is just what I've been looking for! Sweet!

I'll try to use it with my scanner, since my Ubuntu doesn't detect it... It is one of my greatest problems.

Now I just hope I can manage to end the "fusion". When I come to the last part of it, the option "Seamless Mode" ("Modo Seamless", in my Brazilian version of VirtualBox) is disabled. Can you imagine why this could be? I'm including a screenshot just in case. I've also tried the full screen mode, but only the window outside increases, not the windows "screen" inside...

Again, thank you soooo much. iD

[URL=http://img390.imageshack.us/my.php?image=capturadatelaem8.png][IMG]http://img390.imageshack.us/img390/6914/capturadatelaem8.th.png[/IMG][/URL]

One more question: even when I mount my CD drive, Windows keeps saying there is no disc. Why could this be? How can I solve it? I've tried many discs already.

Thanks!

Too bad Windows running under VirtualBox or any Virtual PC environment does not run DirectX which indirectly tells Linux fans out there, you can play Windows games inside a Linux box...yet.

I have Winxp in hda and Fedora Core 4 in hdb. they are working well. But I want Linux inside windowsxp. is it possible, tell me how. please

Dosen't work with OSE version virtualcrap.

Problems that i came across and "solved" so to say.

I'm using the version 1.5.6 VirtualBox on Ubuntu 7.10.

To install the "Install Guest Additions" nothing came up. i went to. Devices -> Mount CD/DVD-ROM, Mount the VBoxGuestAdditions.iso. if it doesn't auto run to go My Computer and double click the CD drive.

If the .ISO cannot be found "/usr/share/virtualbox" (Without the Quotes, Note: this is in UBUNTU 7.10)

For some reason i'm having issues with windows background bugging out and overlaying everything and hiding it underneath. For a quick simple solve i just Right Click the "Start" button click Properties and then drag the screen way off into the farthest bottom corner. for some reason it needs to have a windows app open to to not bug out. and since it is just a properties window it leave no tab in the Windows bar.

Hope this helps some one else!

This tutorial is wonderful, thank you so much.

One note with Ubuntu Hardy Heron. When you do an apt-get the virtualbox that installs is ose. The user will also have to install the kernel modules and then it will work beautifully. Also, if guest installation doesn't work, it may be because there is a dic in the optical drive. Removal of the disc will allow the virtualboxguest installations iso to load and then everthing will work like butter :).

Thanks again!

IS THERE ANY SPECIAL CONSIDERATION FOR INSTALLING SERVICE PACKS THAT YOU MAY KNOW OF?

As far as I know, you can install almost anything in a virtual Windows XP... including a service pack!

hi i have installed Win XP on VB on ubuntu 8.04 but it wont read the usb. when i go into settings for win xp in the virtual box it gives me this error message...

Could not load the Host USB Proxy Service (VERR_FILE_NOT_FOUND). The service might be not installed on the host computer.


Result Code:
0x00004005
Component:
Host
Interface:
IHost {81729c26-1aec-46f5-b7c0-cc7364738fdb}
Callee:
IMachine {f95c0793-7737-49a1-85d9-6da81097173b}

what would i need to install or configure to get this to work?
im new to linux so dont really know what to do, thanks in advance.

From what I understand, the current version of Virtualbox does not work with the USB port....however, there is a work around. If you want to access a USB storage device like a flash stick, you can map that as a shared folder so that you have access to it both from Linux and from Windows. The catch is, if you leave it mapped, every time you want to start the virtual machine, you need to re-attach that storage device to the USB port first, other wise the virtual machine will show an error. The other option is to un-map that shared folder when you are done using it prior to removing the device from the USB port.

I cant get windows to authenticate. I put in my code but microsoft says its bad. I used the code yesterday to install windows on another partition and it worked fine. Any idea what could cause this?

Ok nevermind, apperently you can only install XP a few times before Microsoft Invalidates your key and you have to activate by telephone. I got it working. This is another reason why i really dont like Microsoft. That makes about 120497124 reasons

thanks for the tutorial but i have this problem i dont have the remote display in general settings menu i have all the rest but that one si missing please help !!!

Works Perfectly!!!! Tested on openSUSE 11.0 KDE 3.5

Hey great tutorial but just one problem and thats windows wont copy correctly onto the selected virtual hard drive - it says it's not a valid windows file format i think - so it wont copy all of the files needed, and so it wont work! help...!
Thanks
ENDOW-PJ

Just wondering how do i switch between the VM window and Ubuntu durning the install prosess? I've can't find any docs on keyboard short cuts or anything...The only we I can get back to Ubuntu is to wait for my screen saver to kick in...thanks.

Tried your guide today and it's perfect. Now i have queries. Can i use this new windows for all (almost all) my windows needs(They are not much, except for using my printer/scanner, a few softwares not yet avilable in linux like google chrome etc)? can I do away with the original windows installed with dual boot option with linux in favour of this install?

The answer to your questions is ... YES :)

Thanks Marius for the quick reply. Now more queries (sorry, but i'm tempted to ask) :) , should i install the drivers provided with my machine into this virtual XP? it's not showing my card reader (inbuilt), Also could install the HP Deskjet Programme (may be having the driver), could i Install the drivers for my mobile phone to connect it to XP in this virtual machine? I have installed an antivirus, Office suite, messenger, google chrome, Going to install some more.
Also there is a request Write some more regarding sharing of linux folders with this windows install.
Thanks in advance.

You're welcome!

No... VirtualBox has its own drivers for video, mouse, network, etc. I will suggest to (always) use the latest version of VirtualBox. However, printer drivers need to be installed in the virtual Windows, of course. I can tell you that if you have enough RAM on your system, you can give it about 1.5 GB of RAM and it will do anything you want... Work in Photoshop, print images, manage your Windows Mobile phone, convert videos, listen to music and many... many more :) Also, I suggest to allot 20GB of hard drive space, or more :)

Regarding the Linux/Virtual Window sharing... that's very easy.... Just go to Devices -> Share Folders. Click on the little icon on the right, select "Other" on the Folder Path, select the folder you want to share and click Choose. Check the option "Make Permanent", click OK and you're done :) The folder will be accessible via Entire Windows Network in the file explorer... I guess you know how to get there :)

Have fun!

I forgot to tell you that every device you attach on the USB port(s) of your PC, you must load them in the virtual machine by right clicking on the USB icon of VirtualBox... in the tray area... it's the fifth icon here :) Right click on the icon and select the device you want to connect to you virtual Windows installation. The virtual Windows will immediately see the device and it will prompt you to install the necessary drivers of it (that if it isn't already supported).

Dear Sir;
Great idea. However, I too dont have the option
for 'Remote Display'. I'm running PCLINUXOS-KDE
and have XP SP1 disc.
Also, when attempting to install user additions, nothing happens.
IE is working, can get news, etc.
Any help highly appreciated.
Thanx, jeff

Hi,
This is excellent, thank you. I have tried Windows XP guest on both vmware and vbox now, but unfortunately I'm having problems with both...

Setup: Suse 11.1. HD/RAM: 160gb/3gb (8gb/512mb on virtual). GA installed on XP.

#1: Guest resolution using VirtualBox: I have my host resolution set to 1366x768 (that's set in "Configure Desktop/Personal Settings->Display", regardless of what I change it to in "Administrator Settings->Hardware->Graphics Card and Monitor", I don't know what the difference is!). But my guest resolution only allows it to be 1360x768, which means the Windows XP taskbar is 3 pixels away from the edge of the screen (=annoying). Do you know of any settings in Linux or Windows that would allow me to change this.

#2: USB on VirtualBox: I can't access my USB ports. I have these USB filters set (I ticked all the boxes), but nothing appears to be connected on virtual machine.

#3: SeamlessRDP on VMware: I have everything set up exactly as on your previous thread. XP running fine on VMware, "C:\seamlessrdp" directory with files in, vmware tools installed, rdesktop installed on linux box. But when I click on my desktop link, it appears to do something for a while, but then the task disappears from the taskbar and nothing happens. Strangely though, when I type `ps -fe |grep rdesktop` into the terminal, it appears to still be running! I have no explorer taskbar. There is no sign of anything from the vmware machine.

Any help to any of the above would be greatly appreciated! I'd like to get one of these working at least!

Thanks,
Sam

Hi,
This is excellent, thank you. I have tried Windows XP guest on both vmware and vbox now, but unfortunately I'm having problems with both...

Setup: Suse 11.1. HD/RAM: 160gb/3gb (8gb/512mb on virtual). GA installed on XP.

#1: Guest resolution using VirtualBox: I have my host resolution set to 1366x768 (that's set in "Configure Desktop/Personal Settings->Display", regardless of what I change it to in "Administrator Settings->Hardware->Graphics Card and Monitor", I don't know what the difference is!). But my guest resolution only allows it to be 1360x768, which means the Windows XP taskbar is 3 pixels away from the edge of the screen (=annoying). Do you know of any settings in Linux or Windows that would allow me to change this.

#2: USB on VirtualBox: I can't access my USB ports. I have these USB filters set (I ticked all the boxes), but nothing appears to be connected on virtual machine.

#3: SeamlessRDP on VMware: I have everything set up exactly as on your previous thread. XP running fine on VMware, "C:\seamlessrdp" directory with files in, vmware tools installed, rdesktop installed on linux box. But when I click on my desktop link, it appears to do something for a while, but then the task disappears from the taskbar and nothing happens. Strangely though, when I type `ps -fe |grep rdesktop` into the terminal, it appears to still be running! I have no explorer taskbar. There is no sign of anything from the vmware machine.

Any help to any of the above would be greatly appreciated! I'd like to get one of these working at least!

Thanks,
Sam

Hi Sam,

1. I think you did not installed the Guest Additions, which installs the video drivers for the Windows virtual machine. Quote from the tutorial above: "When the Windows installation is finished and you are able to see the desktop, go to Devices -> Install Guest Additions (in the VirtualBox window) and wait for an installer window to appear on your desktop. Follow the installation steps and reboot the virtual machine."

2. Check this: http://ubuntuforums.org/showpost.php?p=2082674&postcount=11

3. Forget about VMware... that method is too complicated :) VirtualBox is better, and FREE!

Have fun!

Hi Marius, thanks for your very quick reply.

Actually I have already installed Guest Additions. In fact, I've even tried uninstalling and re-installing, but with no luck.

Do you know if there is any way to control the resolution options of the virtual machine. The only two options allowed are 800x600 and 1360x768. I have tried it with my host resolution as 1360x768, but it's not native to my screen and as such the lines are blurry.

With the USB, I have tried updating /etc/fstab, but no help. The weird thing is when I go to "Devices->USB Devices" I can see the USB devices there, but when I hover over them they say "State: Unavailable" (as well as the Vendor ID, Serial No., etc).

Any more help would be greatly appreciated!

(also... with vmware, I like the fact that you can have a link on the desktop to load explorer.exe straight away. Is there any command to do something similar with vbox? without having to load vbox, then press start, then close vbox so you're just left with the virtual machine?

And, again with vmware... I'm having trouble understanding how vmware is started from the command you specified to put in the "link to application": rdesktop -A ...etc... ...where is the bit to load vmware?? Am I missing something? Well I guess I must be, because there's no point in entering the IP address that I can't ping!)

Thanks again!

sam

Hi again, (i guess my previous reply will be posted - unless i got the maths wrong!)...

I realised that my problem with connecting the vmware way was because i misunderstood your tutorial... when you said close the vmware console window, i logged off and shutdown, which obviuosly means you can't connect. So anyway, I can connect using rdesktop, but not with the -A (seamlessrdp) option. Shame.

Anyway... back to the vbox alternative way... any idea if it is possible to start a windows process on the virtual machine from linux (i,e, a similar command to rdesktop using the -s 'shell...etc' command).

Getting there... slowly but surely.

Thanks again.
sam

Hi Sam, well... I have a Windows XP installation in a virtual machine and I do not set up any resolution... I just drag the VirtualBox window from bottom right corner and resize it as I want :)

Hello,

I'm getting ready to set up a core i7 box, and I think I wanna go with a setup like this. I'd like to set up the machine to be able to load both vista or XP on top of KDE. Planning on using this as a C++ dev box on the KDE side and gaming station Win side, and I want compatibility for anything. Plus, I'd like linux stability, even if I gotta restart the windows box occasionally. Has anyone tried a dual boot scenario for XP/Vista on top of a linux distro in the VirtualBox?

Also, has anyone used this setup for development, and if so, have you encountered any oddities? I haven't played around with VirtualBox before, just curious if this is feasible.

From what I understand, XP is only capable of reading the first 4G of RAM. I know this is pretty minor, because not much is using 4G yet, but does anyone know if you can get the VBox to run without Linux touching the 4G Windows can see?

Great guide. I love the idea. Thx for your post :D

I did the above setup on Kubuntu 8.10 as host and ran Windows Vista 64-bit as my guest. The result was i cannot run Seamless Mode at all. Only a small section of the windows task bar appears and i CANNOT switch back to normal view anymore.

I tried the same thing in GNOME desktop, and it only seems to work if the windows is in my second monitor, and only about 40% of time. The other 60% it just runs in normal mode even though i have the seamless mode activated.

So i think Windows XP will work fine, but there is still some more work to be done for Vista.

Hello,

Great tip thanks, although, it's weird to have to taskbars at the same time, I have some questions:

-is that possible to hide everything (taskbar...) related to windows but still be able to run it's applications (not wine or something) ?

-I use PS CS3 and 3Ds max 9, is it going to work smoothly? and what about windows heavy games ?

thank you.

Hey, i am probably getting a net book, and i was wondering, you said we would need duo core processor, but i was wondering do you think there is any way it would work on a netbook with 1.6 ghz?

Hi, well.... depending on how many RAM you have :) 4GB would be nice.

Just to clear up a bunch of questions....

Running windows in a Virtual PC is NOT a good way to play games, or do any intensive computing. When Windows is running as a Virtual PC's, it does not directly access the hardware. Only one operating system can directly access the hardware at a time, in the case the Host system is Linux. So if you have a top of the line videocard, Linux will be able to use it to it's full potential, but the Windows Virtual PC will actually be using a software driver that the Virtual software (in the case, VirtualBox) provides. If you look above in the install process, the Video memory slide was set to 64MB. This is essentially giving you 64MB videocard. The memory used is also taken out of your available RAM.

A virtual PC will always be slower then a standalone setup.

There are some benefits, such as having software to both operating suites at your disposal.
Also, if (when) you Windows PC crashes, Linux will continue to run. All you need to do is restart the Windows side. You still need to install Anti-virus on the Windows side, unless you don't care about it getting infected. It is still a standalone Windows installation, not a magical way to run Windows programs in Linux. It just blends the two desktops together so you don't need to flip between them.