Hello. I am trying to help my sister with her laptop. Had to go with a clean install. So did everything with usb according to microsofts page, and had to do it once again, because the screen upon restart went black at the login screen, and the keyboard became inaccessible. tried all the ways to fix this online, and nothing, so clean install again. Finally got past windows updates with restarts (i found its usually updates that create issues when they somehow go haywire) updated the graphics and bios, to make sure the screen would not have that problem again. Got basic minimal programs installed all good, including malarebytes, everything was good to go, no problems.
Then the next startup after shutdown, got in ok, could run every program that i had a shortcut to, from the taskbar to the desktop, however anything related to the power button or search box for cortana would not work properly. while i could type in its search box and bring up my search item, upon clicking on it nothing would happen, no matter what i tried. and clicking on the start power button area beside yielded nothing happening as well. so could not get into any other programs outside of taskbar and desktop shortcuts, everything in taskbar on the right hand side works, but the left with cortana and start, nothing. no amount of restarts or running scans through cmd yielded anything. in fact the scans came across an error during, almost like administrative issues or something, and anything it fixed that it said needed fixed that it said it did, yielded nothing either.
everything else i tried yielded no solution either. so i am here at my wits end. . . . Hoping someone can help. Would appreciate it.