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: Can't delete second installation of Windows 7.

20 Jan 2010   #1

Windows 7 Ultimate x64
Can't delete second installation of Windows 7.

Here is the situation. My roommate wanted to use my computer and instead of asking me for my password, he decided to install a fresh copy of Windows 7 Ultimate on my 2nd hard drive. The problem now is that I cannot delete any of the windows folders (Windows, Users, Program Files, etc.) and it is taking up space on my drive. Also, I can't simply reformat because there are ~ 1TB of movies that I don't want to get rid of. Every time I try and edit permissions, I get a message stating "access denied." I've tried everything from unlocker to killbot to safe mode removal to trying to take ownership in cmd. Nothing works. Any suggestion?

My System SpecsSystem Spec
20 Jan 2010   #2

Windows 7 x64

You think you could attach a picture of your Disk Management window using the Snipping tool? Try to put labels on the partitions so we can see what is what.

Maybe you could shame your roomage into at least buying you a new hard drive!!
My System SpecsSystem Spec
20 Jan 2010   #3

Windows 10 Pro X64

See this article on how to do this. Download and run the .reg file and a Take Ownership selection is added to the right click context menu. Very nice:

Take Ownership Shortcut - Windows 7

Makes use of the takeown command (C:\Windows\system32\takeown.exe).
My System SpecsSystem Spec

20 Jan 2010   #4

Microsoft Community Contributor Award Recipient


Remove your D: drive & do a start repair 3 or 4 times.

Startup Repair
My System SpecsSystem Spec
20 Jan 2010   #5


If the take ownership shortcut doesn't work to allow you to delete the Programs, Users and Windows folders, then post back a screenshot of your full Disk Mgmt drive map so we can see what complications exist.

Use the Snipping Tool in Start Menu, attaching file using paper clip in reply box.
My System SpecsSystem Spec
21 Jan 2010   #6

Windows 7 Ultimate x64

After taking ownership, I am able to remove all the folders except "Windows." When I open it up, all the sub-folders have been deleted except for "SysWOW64." I get the following error message. I've also included an image of my disk management.

Attached Thumbnails
Can't delete second installation of Windows 7.-1.png   Can't delete second installation of Windows 7.-dm.png  
My System SpecsSystem Spec
21 Jan 2010   #7


Unfortunately, your E: drive has taken the System Active flag and now holds the MBR. It needs to be recovered to Win 7.

In Disk Management, mark Win7 drive Active. Power down. Unplug E: drive. Make sure Win7 HD is first HD set to boot in BIOS, after DVD.

Boot into Win7 DVD, select Repair My Computer on second screen, click through to Recovery Tools list to run Startup Repair up to 3 separate times with reboot to rewrite the MBR to C: drive.
My System SpecsSystem Spec
08 Feb 2010   #8

Windows 7 Ultimate x64

So I have now removed the System Active flag from my F drive and am still unable to delete the windows file. I have taken ownership with the registry modification. This is where I'm at. Any suggestions?

My System SpecsSystem Spec
08 Feb 2010   #9
monkeys breath


try the following. you may have to do startup repair once you ndo remove the wow folder.

Remove on Reboot Shell Extension Download - Softpedia
My System SpecsSystem Spec
08 Feb 2010   #10


Unfortunately you haven't yet removed the Active flag from E and F drives.

Use free Partition Wizard bootable CD to rightclick>Modify>Set to Inactive both E and F Drives, OK each, then Apply.
My System SpecsSystem Spec

 Can't delete second installation of Windows 7.

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar help and support threads
Thread Forum
Cant Delete Old Primary XP Partition after Win 7 Installation
Hi Guys. I am having a tough time here. I have an older hp pc that came with Windows XP. Last Year I upgraded it to Windows 7, but to be safe I installed 7 on a newly created partition. Problem is is now that im satisfied with 7 I want to delete my old xp install, but the partition is still...
Installation & Setup
How to Delete all Partitions during Win7 Installation?
How to delete all HDD Partitions during the installation of Win7? I want to wipe out all of the existing partitions and make it 0 and then create new volumes with different sizes. I cant delete primary partition during installation. Or is there any other software i can use to delete all partitions...
Installation & Setup
How to delete an incomplete XP installation on Boot and 2 others
Hi, I have Win 7 installed and thats the only one I need. From what I see in the forum threads, in my case the MSCONFIG does not show 3 other previous versions of OS (1 XP, 1 incomplete installation XP and 1 DOS). I already tried from My Computer, Advanced Settings, Start Up and set to...
Installation & Setup
Windows 7 installation - which partitions can I delete?
My computer is knackered and I want to wipe it clean and start again. I don't want to keep ANY of what's on there as it had a virus that corrupted my internet explorer and I want to fix it. I have backed everything I do want up onto disk already. So I'm installing windows 7 custom installation...
Installation & Setup
What Can i delete on my C drive after installation?
Alrite, Well i just installed windows 7 and now have alot of used space on my C Drive, Im going to take a screenshot. What can i delete that wont affect my computer? Im In the middle of Deleteing Windows.Old Cause i dont need it anymore. I have 2 Program Files, Idk which one i can delete and...
Installation & Setup
Delete windows installation without formatting?
Is it possible, and if it is, how can I do it without screwing the system(the one I use) or loosing non-windows files? I want to delete: -Program files -Windows folder -Docs and sets -Users -All other related stuff
General Discussion

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 05:40.

Twitter Facebook Google+

Windows 7 Forums

Seven Forums Android App Seven Forums IOS App