A730 white screen at startup

HI: first post here

I have several PC A720/A730 and love

my most recent A730 has developed a problem and I need help:

At startup, the screen stays black for several minutes: then finally I see WIN welcome screen: otherwise no problems with PC

Please help me solve this problem: I've read here a similar problem with an A720 and he suggested to reinstall the display driver: who can fix this?

TIA

Mark

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Tags: Lenovo Desktops

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