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Windows 7: White square in middle of screan by starting up W7

18 Oct 2016   #1

Windows 7 Ultimate x64
White square in middle of screan by starting up W7

When I start my computer and Windows 7 has completely started there is a white square in the middle of the screan.

When I open a programme, it disappears

What is the problem and what can I do so that the white square doesn't appear by starting up the pc?

Thanks for the reply's

My System SpecsSystem Spec
18 Oct 2016   #2

Windows 7 32 bit

Several suggestions for this issue are found on this page:
white Square in middle of Screen - Microsoft Community
My System SpecsSystem Spec

 White square in middle of screan by starting up W7

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