Windows – Backup the documents via command prompt

Is it the 3 of 3 reboot loop?

After installing updates from Windows Update, you may get into a Reboot loop where you machines gets to “configuring updates 3 of 3. X% complete” then freezes or reboots.

Solution:

1a. Boot from the Windows 7 System Repair Disc and choose the repair option in the lower left hand corner, choose System Restore, and select a Restore Point predating the attempted installation of the updates.

1b. If you don't have the DVD and Vista/W7 came preinstalled on the machine, use F8 at the bios splash screen to get the Windows Advanced Screen, choose "Repair Your Computer" from the list, let Windows RE load then do a system restore.

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2 . If restore fails, load the recovery environment "command prompt" enter

Del C:\Windows\winsxs\pending.xml

exit recovery environment and restart the pc, you may get 3 of 3 again but be patient, the desktop should load. Create a restore point and Turn off Automatic updates until you can figure out which update caused the loop.

Try these general steps:

• Make another install of windows on the same disk on the same computer in a different partition. (Shrink your Windows partition and make a 30GB one, then install 7 in that.)
• Copy all of your boot files from the new install to the broken one using a Linux LiveCD (I would recommend Ubuntu as it comes with GParted, software which will allow you to do the aforementioned partitioning changes)
• Select your old 7 install from the boot menu and see if it works. If it does, delete the new partition and run startup repair.
• If it doesn't doesn't, consider using a Linux LiveCD (I prefer Ubuntu, a very user-friendly distro) to copy your data over to a new install of Windows, either disk-to-external-media-and-back-to-disk or just into a new Windows partition.