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Startup fault Root cause found unknown bugcheck f4 parameters =0x3
I have an acer laptop running Windows 7. I did a windows 7 update in the morning that afternoon I had problems re-starting the computer. Internet Explorer wasn't working saying page could not be displayed and Norton was playing up as well. I have completed a startup repair and got this error message;
Root Cause Found
Unknown bugcheck f4 Parameters = o x 3, oxfffffa8007efe230, 0 x fffffa8007efe510, 0 x fff800033d70do.
Repair Action: system files integrity check and repair.
Result failed. Error code = 0 x 45d.
Time taken - 1569027ms
I have now tried to start windows normally and it has taken about 20 mins so far and just a black screen.
Can anybody help please.