Im using Win 8.1 on an HP Pavilion x2 tablet pc. Today my wireless adapter would not recognize my wifi connection no matter what I tried (reboot, diagnose, reboot) so I went into msconfig to run safe mode to try it there. Well it worked. So I figured it must be a program/app causing the problem (most likely the last thing I did was reboot after Avast did an update). I went back into msconfig to turn off safe mode and that's when I saw that selective startup was checked. Not knowing why I selected normal startup and unchecked safe mode. At reboot I get a blue screen that stated "PC needs repair - error 0xc0000225" When trying to select F8 or enter it did nothing. ESC for UEFI Firmware Settings worked but I was at a loss of what to do there even after searching. Luckily I found my restore flash drive. After trying multiple suggestions for repairing the boot file it finally started up just fine. Not sure what command finally did it. (I was unable to select system restore etc from my menu for some reason but was able to get into cmd.) Anyway, after it loaded up I went back into msconfig, it's at Selective Startup again. Just curious why it is on that and not normal startup and why would it not boot at all when I chose normal? Hopefully I will not forget this and go through this again in the future.