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Windows 7: Boot up flashing

25 May 2015   #1
robww22

Windows 7 64 bit
 
 
Boot up flashing

Sorry for the awful focus but you'll get the idea:

https://vid.me/e/P2bJ

From boot up to the Windows login screen, the screen constantly flashes, once i log onto windows, everything is fine, no flashing, no broken image on screen, games run perfectly fine, no crashes or anything.

Why is this happening?

Its been going on for about 6 months now

Thanks


My System SpecsSystem Spec
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25 May 2015   #2
GokAy

Windows 7 Ultimate x64 SP1
 
 

The link doesn't work for me, why don't you just post here directly? - Screenshots and Files - Upload and Post in Seven Forums

I don't know how a BIOS outputs to a display but windows uses standard vga drivers until real drivers kick in, maybe they got corrupt somehow? I am not sure how to check it, is it the VgaSave under Non-Plug and Play Drivers, when you unhide devices in Device Manager?

Also, another thing that comes to mind is your monitor got corrupted somehow and have issues displaying correctly in lower resolutions, so try: the lower resolutions, say, 640x480 and others. See if it will reproduce in lower resolution.
My System SpecsSystem Spec
25 May 2015   #3
TVeblen

Microsoft Community Contributor Award Recipient

Windows 7 64 Bit Home Premium SP1
 
 

Your video card will have more than one output port. You are most likely using the HDMI port.
You could try using the DisplayPort (or second HDMI if equipped) or one of the DVI ports to see if the problem persists. You may need to buy or borrow a cable to do this. It also depends on what input ports your monitor has.
You could also try a different HDMI cable.

After that test, if needed, you could try another monitor on your PC.
My System SpecsSystem Spec
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25 May 2015   #4
Boozad

W7 Pro x64 SP1 | W10 Pro IP x64 | W8.1 Pro x64 VM | Linux Mint VM
 
 

Quote   Quote: Originally Posted by GokAy View Post
The link doesn't work for me, why don't you just post here directly? - Screenshots and Files - Upload and Post in Seven Forums
You can't upload videos to the site, they're too large.
My System SpecsSystem Spec
25 May 2015   #5
GokAy

Windows 7 Ultimate x64 SP1
 
 

Oh, my bad, wasn't aware it was a video. Sorry
My System SpecsSystem Spec
25 May 2015   #6
Boozad

W7 Pro x64 SP1 | W10 Pro IP x64 | W8.1 Pro x64 VM | Linux Mint VM
 
 

No bother.
My System SpecsSystem Spec
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 Boot up flashing




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