probook 4540s

Hi, hope you can help with my issue So, my laptop HP Probook 4540s was working perfectly fine until like 2 weeks ago. That day I had an issue when I plugged the AC adapter and the LED that is on top of the ac jack flashed white, the pc turned on but the battery wasnt charging. I looked it up...

I have a ProBook 4540s with a 2 TB HDD, and recently I replaced the optical bay with a 12.7mm caddy to add a 1 TB SSD. I checked with HWInfo and both SATA ports in my laptop aren't speed limited, and are detected as SATA 6.0 Gb/s. The laptop can boot properly from the SSD at maximum transfer...

HI, 2 months ago my graphic card AMD 7650M probbably die. When laptop try to switch between Intel and AMD GPU, it just show bluescreen and restart. I try uinstall graphic card, driver and install original driver from hp page, update windows. Nothing works. My windows version won´t be...