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

windows 8

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…

Best Answer

  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.

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