Hello , i recently instaled Windows 8 loopback adaptor and ran into a big problem. After shutting down my computer , i tryed to start it again and a smiley face was shown to me "" with the text saying something like this : " We ran into a problem , trying to fix it , w8ing for restart (and loading my restart and fix) " and with small letters was written error code 0xc000021a (and try to check online later). After restart nothing was fixed , same error same restart. It was never fixed. I didnt had a win8 usb/dvd because i upgraded my 7 online. So here i am back to 7. I am writing this for further notice and for other ppl to read and let them now what might get into. If there is any fix plz help me.