Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Dual Boot Issue

16 May 2010   #1

Dual Boot XP and 7
Dual Boot Issue

So I am dual booting XP and 7 at this point. However, I have no need for the XP OS now, and want to delete that partition.

I've tried doing it via the command prompt way. When I type delete volume it says:
"Virtual Disk Service error:
The device is in use."

but when I type in delete volume override it tells me:
"Virtual Disk Service error:
Delete is not allowed on the current boot, system, pagefile, crashdump or hibernation volume."

Is there a way to go about fixing this without wiping my entire drive and starting from scratch? Thanks!

My System SpecsSystem Spec
16 May 2010   #2

Microsoft Community Contributor Award Recipient


1) Download SIW2 Tool sispar to your desktop, from here.
NTLDR is Missing
Boot loader on separate partition?

2) Unzip download.
You can download 7zip from here,

3) Open folder, Right Click and run as admin on sispar.cmd.

4) Press enter

5) Enter the drive letter you want for the NEW system partition (must be a Primary partition with 7 on it)

6) If you want to include all your current boot menu items (assuming you have more than one) type Y when it asks, if you only want the boot menu entry for the New system partition, type N.

SIW2 [Quote] It takes about 3-5 seconds.
That's it.
If the NEW system partition is on the first HD in boot order - it will show as "system" in Disk management on next restart. If you have more than one HD - obviously, on restart go into bios and set the HD containing the NEW system partition first in bios boot order.[Quote]
My System SpecsSystem Spec
26 May 2010   #3

Dual Boot XP and 7

Thanks for the help. Unfortunately I started getting a missing NTLDR message soon afterwards and had to reformat my system... which allowed me to fix the partition issue, albeit in a more extreme manner than I would have liked.
My System SpecsSystem Spec

26 May 2010   #4


Sorry you had the bad experience. I'm going to let SIW2 give out his Sispar automated batch file in the future as it failed when I tried to help someone using it, too.

The tried and true procedure (learned from SIW2) which has helped remove hundreds of dual boots here remains: Mark Win7 partition active, boot the WIn7 DVD REpair console or Repair CD, click through to Recovery tools list to run Startup Repair up to 3 separate times with reboots to write the MBR to Win7.

Now you can delete the XP partition, even recover its disk space into Win7 using free Partition Wizard bootable CD, which can also be used to mark your WIn7 active and delete XP.
My System SpecsSystem Spec

 Dual Boot Issue

Thread Tools

Similar help and support threads
Thread Forum
Uninstalled Linux OS dual boot with Windows 7 now boot issue.
Tried Ubuntu & didn't like it so wanted to remove it completely. After deleting & recovering that portion of (G: ) which is where Ubuntu was installed, I couldn't boot in Windows 7. I was able to use my install disk to load into repair. The OS it found was- OS -Windows 7 Partition Size -...
General Discussion
Boot issue after removing original OS in dual boot
Hi, I seem to have royally trashed my boot capability. Please help. The original set-up was as follows: Vista Home Premium was installed on a two-partition disk Subsequently, Windows 7 was installed on a single-partition disk; I could not upgrade because it was Professional edition, and I did...
Installation & Setup
Dual boot issue
Hello, I currently have Windows 7 Home Premium x64 installed as OS and I want to dual boot a Windows XP Professional x86. So I prepared everything in Win7 as mentioned in this tutorial, inserted my XP disc (original disc), and then booted into the OS installation. Whilst in pre-install,...
Installation & Setup
Dual Boot Issue (Lost my Dual Boot Menu)
Hey Guys, So I just got my hands on Windows 7 and wanted to play around with it, and everything works but: Previous Computer Setup: I had a dual boot with XP and Vista that worked perfectly (both OS's were on separate HD's and worked / booted correctly.) Drive C: --------> Vista (Now...
Installation & Setup
Dual boot issue - please help!
Hi, This is my first post so bear with me, I have checked the forum but can't seem to find quite what I need. I was running Vista, and not liking it too much so I downloaded and installed Windows 7 RC on another partition. Was happily dual booting into both of them until today when I...
Installation & Setup
dual boot issue
ok so im having a weird problem thats probably very easy to fix. background info: before my win7 install i had 3 partitions vista 64 xp 32 empty (soon to be linux) when i downloaded the newest win 7 build i deleted my xp 32 partition and installed win7 on that partition. because win7...
Installation & Setup

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 02:11.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App