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Windows 7: Installation error - Build 7000

02 Jan 2009   #1

Installation error - Build 7000

e6600 2.4ghz

Windows XP Pro

Mounted .iso image and proceeded to do a clean install, got till the end of the installation and an error saying: "Windows could not update registry data in the installation" popped up and reverted my setup back to Windows XP.

I don't have DVD burner so I don't have the option of burning the .iso to a DVD.

I tried setting up a dif. partition thru PartitionMagic but was not able to...

Help? TIA

My System SpecsSystem Spec
02 Jan 2009   #2


Found this post related to a Vista installation:
I got the message "Windows could not update registry data in the installation." on several attempts to upgrade Vista. Each time, I uninstalled more software (including parts of IIS that caused some other folks trouble).

I also checked my event logs (using eventvwr.exe) and cleaned up problems reported there until no more errors were being logged.

Then I found the file C:\$Windows.~BT\Sources\Rollback\setupact.err had some useful info. An error message there suggested trouble with the HKLM\SYSTEM\MountedDevices key in the registry.

I cleaned out some old entries from there, rebooted, and tried the upgrade again. This time it worked (although it appeared to freeze a couple of times toward the end, requiring a hard reboot -- scary stuff).

If you want to try cleaning up the MountedDevices key, read up on it first to avoid causing more problems, and save the existing data there first. I kept the \DosDevices entries and \??\Volume entries for my floppy and hard drives (A:, C:, F and removed all the other entries. On reboot, Windows rebuilt the entries for my CD and DVD drives.

Gonna check it out..
My System SpecsSystem Spec
02 Jan 2009   #3

Microsoft Community Contributor Award Recipient

Vista x64 / 7 X64

Hi Albert,

That link could well be right. A clean install will be a better bet.
You may need to create a partition and format to NTFS before you begin to install 7. How come you couldn't create another partition - any error messages?

Hope it helps

My System SpecsSystem Spec
02 Jan 2009   #4


Clearing out the old MountedDevices registry keys WORKED!

I'm posting this via my laptop, but the Windows 7 booted successfully...

It looks great!
My System SpecsSystem Spec
02 Jan 2009   #5


Glad to see you got thing sorted Albert.

Welcome to the forums
My System SpecsSystem Spec
03 Sep 2009   #6

Windows 7 Ultimate

I'm having the same problem for the past 2 days or so, installed the windows quite a few times, but having the same error time and time again

Please help...... I can't boot from the CD as well, the CD isn't bootable

Please Help
My System SpecsSystem Spec
03 Sep 2009   #7


Type regedit in run via the start menu.

Navigate to SYSTEM
Navigate to MountedDevices
Delete all entries except for the /DosDevices entry pertaining to your main hard drive.

My System SpecsSystem Spec
04 Sep 2009   #8

Windows 7 Ultimate

and the one's with the name /??/volume

wht to do with them, it won't be making any troubles right, if I delete them as well ???
My System SpecsSystem Spec
04 Sep 2009   #9


Yeah, I deleted them as well.
My System SpecsSystem Spec
04 Sep 2009   #10

Windows 7 Ultimate

alright thnx for the replies

I really appreciate it

My System SpecsSystem Spec

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