After the update, my SP3 wouldn't boot, I let it charge overnight, then the BSOD. The auto repair worked and I used the computer all day and then bam! it went black while plugged in. To make a long story short, the computer store said it was the battery. I went through all the fixes on the MS website including restore to factory default. It works now as long as it's plugged in except occasionally just goes black. I've had it since 12/2014 so no warranty. I've heard others are having the same issue!?