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#1
Screen gets stuck flashing during OS boot, PC unusable
Video of problem: http://s1.webmshare.com/6MNZE.webm
Searching about the issue online, it seems that this can be caused by norton or iCloud software, or two Microsoft background services that you have to disable in MSconfig to stop the screen flashing. I don't have norton or iCloud, and I disabled the two services. Still happening. Can't find anything else online that mentions how to fix this. Also apparently for most people the flashing doesn't start until they've reached the desktop already, whereas for me it starts before I can even do anything. PC completely unusable.