I try to do the IT work for my church. On Wednesday, two of the systems did Windows 10 updates and are now unusable.
A Dell Inspiron 518 updated, then would not boot. It powers up, but does not show the self diagnostics or even try to boot from a CD.
I took this system home and put the hard drive in an adapter so that I could recover the files. It said the drive could not be read and needed to be formatted before it could be used. I put another hard drive in the computer, but it still would not even show the self diagnostics.
A Dell Vostro 220 stayed on the blue screen with the circling dots for a very long time (hours) before finally getting to the log in screen. After logging in, the screen went black except for the mouse arrow. The mouse pointer is active, and it appears the pointer can go off screen at the bottom or right side. If I hit CTRL/ALT/DEL, I get the blue opening menu of the Task Manager. Switch User and Change Password get me to those screens, but Task Manager does not open.
I tried to restore the Vostro to before the Windows 10 update, but when it finished it said there was an error and nothing was changed. When I tried to reboot, it went back to the blue screen with the circling dots for over an hour. I finally interrupted and tried to boot again. It booted to the login, but then went back to the black screen with the mouse arrow.
I found some information online that indicated the computer was set for two monitors and I was only seeing the second screen. I installed a dual video card and rebooted, but then it went to the blue screen with circling dots again for about an hour. I finally gave up and just replaced the hard drive and reinstalled everything.