I had Windows 7 and ubuntu on my PC. Now I removed Ubuntu from Disk via Windows and restored original MBR oft Win7 via Installation disk. Now I tried to Boot thr PC. Following message: The boot selection failed because a required device is inaccessible. Now I am trying to restore MBR again via Install disk but now I get this message. (Not 100% right, I translated it from German): This version of the systemrecoveryoption is not compatible with the Version you are trying to repair. Use a recoverydisk compatible with this Windows Version. Need to reinstall or another way to fix?


The following method completely rebuilds everything, you can use it from your favorite Windows Setup. Just use Shift-F10 to fire up a command prompt without going through unnecessary steps.

bcdboot c:\windows /s c:

This installs a completely pristine Windows Boot Manager to c: and adds Windows to it. You may need to find the right drive letter first, though.

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