Several users are reporting Windows 8.1 fails during the upgrade. The first solution is turning On Windows updates and be sure that update: KB2871389 is installed on your computer.
The second problem may come from your Windows Edition. The Windows 8 Enterprise, is not supported via Store or you have installed any cracked version.
If you are ruining windows 8 you can upgrade for free from Windows Store. Upgrade to Windows 8.1
Error 0xC1900101 – 0x30018 – Microsoft please answer!
This is ridiculous. I couldn’t update when the Preview came out in the summer, and now I can’t update when the final 8.1 shipped. I am still getting this uninformative error:
Couldn’t update to Windows 8.1
Sorry, we couldn’t complete the update to Windows 8.1. We’ve restored your previous version of Windows to this PC.
0xC1900101 – 0x30018
I demand someone from Microsoft to clearly tell us what this error message means — look into your source code, do whatever, just get the human understandable description of those cryptic codes and tell us what we need to do to proceed.
PLS NOTE : MY KB2871389 IS INSTASLL ON MY PIC BUT STILL IS NOT WORKING.
Install the latest driver of your Qualcomm Atheros card!