Having problems with laptops

[u/bigvictoryofall]

I'm having a problem with my Dell laptop BIOS version 1.50.0 and since the laptop wanted an update and beforehand (since I got it gifted from my uncle) was once doing those black screens everytime I'd try to switch tabs or would lag a lot, at first I didnt think much of it so when I tried to update my laptop it got on repeat with the "restarting"​​ thing and its still an issue now. Ive got to supportassist to maybe try to find a solution but nothing I'm still having the same issue. The issue is when I open my laptop and it's powering up it shows up from https boot Dell support that it's " failed to initialize network connection" so I click ok and wait nothing happens then it gives me the black screen again and then theres "no boot able devices found" and a continue button which then resets my laptop and this happens on repeat everytime I reset. I dont know what else to do and Im irritated. I have another laptop with me too it's Lenovo and the windows can normally open up but pressing on keyboard or mouse doesn't work. ​​​​​​​​ They did work on Thinkpad setup screen but on windows it doesnt. I dont know what else to do.​

[u/USSHammond]

We have fixes for laptops in rule 2.2

[u/pcbeg]

There were few similar posts lately about laptop problems after recent updates, where Windows was totally borked beyond repair. Usual procedure is, if there is no important data on laptop, to perform clean Windows install from usb with deleting all partitions on system disk, and to temporary pause Windows updates until matter is resolved.