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Windows 7: Black screen with short white strips after Windows restart

15 Jun 2014   #1

Windows 7 Professional 64bit
Black screen with short white strips after Windows restart

I have HP ProBook 430 G1 with pre-installed Windows 7 Professional 64bit. After clean system installation I have resized Windows partition and created new partition for Ubuntu. I also removed HP_Tools partition. After that (I don't know if it happend before resizing partition) when I start Windows and restart it from Start menu I got black screen with white short strips. I see it for about 10-15 seconds and Windows start normally. It happens after choosing Windows from boot menu but before Windows logo appears.
It only happens after system restart. It doesn't happen when I start system for the first time after turning on computer.
I uploaded photograph of the screen as an attachment.
Anyone has any ideas what causes this problem?

Now, after I was hitting F8 to start safe mode this screen appears everytime - no matter if I start or restart computer.

Attached Thumbnails
Black screen with short white strips after Windows restart-dsc00092.jpg  
My System SpecsSystem Spec

15 Jun 2014   #2

windows 7 ultimate x64

GRUB issue
My System SpecsSystem Spec

 Black screen with short white strips after Windows restart

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