Q. My event viewer shows –
Installation Failure: Windows failed to install the following update with error 0xC1900208: Upgrade to Windows 10 Pro.
Looked up error and it says that there is an incompatible app??? So do I start uninstalling my apps and programs one at a time until the install works? HP Pavilion laptop, AMD-A6; 6GB memory, Windows 8.1
I took a different approach on this problem since I could not identify a particular App or program that was causing the problem. I thought that perhaps the WIN10 download itself was the problem. I went searching and came across this — http://answers.microsoft.com/en-us/windows/forum/windows_10-update/how-can-i-fix-windows-update-error-cumulative/c4372ddc-224c-46dd-856c-53b128b26a6b?auth=1
I used the method 2 – stopping the update services, renaming the download folder, and restarting the update services. It took a while to re download, but then I could complete the WIN10 install successfully. I still have some other problems, but this did fix the update problem.