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VilemRousi Honor Student
Honor Student
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HP Recommended

Caps lock and num lock flashing 7 times

Pro Book 450 G3
Microsoft Windows 10 (64-bit)

Dear all,


I would like to ask you for help. I cannot run my laptop Pro Book 450 G3. The caps lock nad num lock just flashing 7 times and nothing more happens. 


I did not find the explanation for the codes here:


There is no explanation for 7 times blinking of caps lock and num lock. There is just "Power button LED blinks 7 times with 7 beeps", but Power button never blink - just the caps lock / num lock.


Do you have any idea what is the issue, or how to fix it?


Thank you for any idea.


Thank you.




I treid to remove the bios battery but it did no help. 



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