Win 8.1 x64 - cannot install windows updates

This was after tying to manually install KB2975061.I have tried everything I can think of to get Windows Update to work. I've run sfc /scannow, run the Windows Update fixes, I've deleted the Software Distribution files, turned off and on the updater service, rebooted, downloaded the kb files individually and run them.

Besides the updates not working, I cannot turn on the search & index service, and Scheduled tasks does not work. The only thing I can think of is that JV16 Power Tools may have been too "enthusiastic" in doing a registry cleaning.

Other than reinstalling Win*, anyone have a suggestion?
donno46Asked:
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Satheesh AgatheeswaranIT ManagerCommented:
Which version of 8.1 are you running (Home, Pro or Enterprise).
The KB which listed by you relating to Bitlocker, This update can be disregarded unless you are on enterprise edition
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donno46Author Commented:
That was just an example of what happens every time I tried to manually install a KBxxxxxxxx
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donno46Author Commented:
Sorry, forgot to add I'm running Win 8.1Update Pro x64.
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donno46Author Commented:
I just tried restoring the registry, no joy...
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McKnifeCommented:
What does the file windowsupdate.log say? (situated in c:\windows)
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aadihCommented:
You could try a repair install (not a clean install).
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Satheesh AgatheeswaranIT ManagerCommented:
Try re-entering the Windows key and reboot the system. Sounds like activation issue. Please ensure you are using genuine key
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donno46Author Commented:
I finally broke down and did a clean install.
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aadihCommented:
Great. You got a clean computer.  :-)
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