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ICT-Solutions
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Boot problem and MAIUSC Led blink

Probook 4740s
Microsoft Windows 7 (64-bit)
Hello everyone, I have a problem with the laptop probook 4740s which 
sometimes does not start after pressing the power button .
After pressing the button , the LED flashes the SHIFT key, and after a
few seconds the fans run fast . Other times the computer starts normally .
What may be due? I tried to make a bootable USB flash bios update but it failed!
Thank you
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ICT-Solutions
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Boot problem and MAIUSC Led blink

Please... it does not happen to anyone else???

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