My HP notebook 6550b is not booting after I switch it on

[Hydar]

That what it shows after show ing starting window

[Lil_Boy_Blue · Accepted solution]

Hi

As it takes several hours for piccies to be approved, and you haven't given any indication of any remedial action, I can only give loose suggestions.

First:- Turn off the computer, press and hold the PWR button for 4 seconds.

Then - Leave only keyboard and mouse connected, disconnect all externally connected
devices such as Docking Station, USB storage devices, displays, and printers.
Unplug the AC adapter from the computer.

Next - Press and Hold the Power button for 15 seconds to Hard Reset.

AND/OR - Power on your PC, press Esc (repeatedly), then F2 at the prompt.
Choose System Tests (Fast Test does a 4 minute hardware check).

AND/OR - Windows Logo key + Ctrl + Shift + B

AND/OR - If you’re using multiple displays, try projecting video to a different monitor.
Press the Windows Logo key + P, select a display, and then press Enter.

[Lil_Boy_Blue]

Prego.