Black blinking rectangular shapes on win 10

[BaronBex]

Hello people, since i upgraded to win 10 i'm experiencing some strange rectangular shapes blinking on my screen (if i move the mouse than start blinking), it happens randomly and the only way to make them disappear is to restart the pc. can anyone help me?
my specs:
HP XW8400
2x xeon x5355 2.6 ghz 4c/4t
16 gb ram
Nvidia quadro 4000
4x 1Tb HDD
No SSD yet

see picture below

thankyou

 

[Colif]

Do they happen in safe mode?

its a distinct pattern, thats for sure

 

[James Mason]

Probably won't work but, i suspect a dying GPU:

If you have graphics or driver issues, one of the most common fixes is a clean uninstall and removal of your graphics drivers.

To uninstall your drivers, first download and run Display Driver Uninstaller, and follow it's recommendations of booting into safe mode and ect.
(This is a direct download link so you don't grab the wrong version)
http://www.guru3d.com/files-get/display-driver-uninstaller-download,20.html

You'll download a compressed file called "[Guru3D.com]-DDU.zip"
Right click and choose extract.
Go into the folder and run the DDU v##.##.exe
This will extract more files to this folder.
Run Display Driver Uninstaller.exe
Choose Yes when it asks you to boot into SafeMode.
After you've rebooted into safe mode.
When DDU comes up, if it hasn't selected your GPU manufacturer (Nvidia/AMD/Intel) then choose it from the drop down list
Press the Clean and Restart option
If a window comes up asking to disable the Windows automatic installation of display drivers click yes.

After (or before removing the old drivers, just put the new ones on the desktop or somewhere handy) rebooting back into Windows, manually download the latest drivers from Nvidia or AMD, don't use auto detect, choose you GPU model and OS from the drop down lists.
Nvidia: http://www.nvidia.com/Download/index.aspx?lang=en-us
AMD: http://support.amd.com/en-us/download
Intel: http://www.intel.com/content/www/us/en/support/detect.html