Windows 8 upgrade to windows 8.1 Pro fails with error code 0xC1900101 - 0x2000C

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I have a new Dell desktop XPS 8700 i5 ; 12GB Ram ; 4 cpus @ 3 GHz ; 1 TB HHD

The download and checking went error free. It asked to restart to do the install then after 26 Percent of the install it Errored out with Error Code 0xC1900101 - 0x2000C... Then reverted back to Windows 8 ? Any guesses...

windows-8
asked on Super User Oct 18, 2013 by James Howell

2 Answers

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  1. Disconnect all the devices connected to your computer. (HDD, keyboard, printer, second monitor)

  2. Remove directory "$windows.~bt" in C:/

  3. Windows key + R press

  4. Enter wsreset.exe and hit Enter

  5. Restart your computer.

  6. You try to update again.

The command resets the Windows Store cache without removing installed apps or account settings.

answered on Super User Oct 20, 2013 by Erdem • edited Mar 30, 2014 by Jon
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Try this:

http://support.microsoft.com/kb/949358

It is one of the fixes for 8.1 Update problems.

answered on Super User Jan 23, 2016 by the original mike western

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