

Two new updates were installed in this troubleshooting process. So I deleted the new SoftwareDistribution folder and replaced it with the old one. I renamed it instead and tried reinstalling the updates but still no success. Followed advice to delete update history on Windows server by deleting SoftwareDistribution folder. The last steps I took in Windows 8.1 were as follows:ġ) Have had problem installing 2 updates. (problem fixed itself after leaving computer for 45 mins)

(identifies issue as to do with mixed video drivers and suggests replacing Windows.UI.Immersive.dll) The threads that most closely match my experience are as follows: This ‘feature’ of Windows 8.1 is well documented on forums and is principally connected with updates. Can enter repair environment when booting from DVD or USB. Cannot enter safe mode: get black screen but with a row of blue pixels at the bottom or a row of red pixels at the top. Cannot run Windows 8.1 due to black screen.
