From Infoworld –
Here’s how this works – If you have Windows 8.1, You must update to Windows 8.1 Update (Yes, someone named it Windows 8.1 Update). This will insure you get future security updates in the near future.
Keep updating until you see the power symbol and the search icon in your Metro screen! And then keep updating …don’t miss any updates so you are covered on future updates.
See our troubleshooting information on getting updates if you have problems.
More Tips on updating issues-
- Remove third party software
- Run Bleachbit
- Run a registry cleaner
- Remove your anti-virus, update Windows and then reinstall (See our Malwarebytes link below)
If the installation fails, try the following-
Run CMD as administrator
Type the following: dism /online /remove-package /packagename:Package_for_KB2919355~31bf3856ad364e35~amd64~~126.96.36.199
After this finishes, type: dism /online /cleanup-image /startcomponentcleanup
Retry the upgrade again.
Error 0x80071a91? Try this update. http://support.microsoft.com/kb/2939087/en-us