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pc had the above and had to force restart but pc wont boot up pc on but display says no signal

 

1 REPLY 1
HP Recommended


Hard Reset - Diagnostics


On a desktop system, unplug computer.
If the power cord has a transformer (wall wart) unplug from the computer.
Press the power button 2-3 times to discharge residual electricity.



Plug back in then ---

This is how to do a hard reset

  • Turn on the computer by holding the power button down for 20 full seconds then release.
  • Press the Power button one more time (if necessary) to start the computer.
  • Tap the ESC key about once a second after you see the LEDs on the keyboard flash.
  • Press F2 to run diagnostics: (v) 2.6 or later is recommended.



Makes sure you can pass the memory and disk test. If you still cannot power up then check warranty

 

If BIOS and diagnostics are OK then try to get into windows safe mode and try a startup fix

 

That is a driver problem, probably cause by a windows update, or less likely: file corruption.

You need to boot into safe mode to fix the problem.
Click here to see how to start your system in safe mode.

Bring up the Windows Device Manager and look for errors
Sometimes you can just delete the defective device and reboot to have Windows find the correct one.
If Windows put the wrong one in then you need to roll back the driver to the previous one.
You can also run SFC or DISM to fix file corruption while in safe mode.

SFC and DISM are both tools that scan and repair corrupted system files. However, SFC uses a cached version of the files, while DISM uses the internet to download and fix the files.

Try the SFC first and if that gives a message that it cannot fix the problem then try the DISM tool.
Click here for repair instructions.

Let me know what you find out.


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