When I open the capture software, after a few minutes (not actually recording anything, just before I click the capture button) my computer suddenly gets a blue screen of death. It has happened three times today, with all three times the software was open. In the first BSOD, I got an error code that read "APC_INDEX_MISMATCH" and the second and third times it said Kernel Security Check Failure. It was working perfectly yesterday. I managed to record several gameplays in full HD with absolutely no lag, so I don't understand why this is happening now. I even updated my Windows and ran a virus scan (nothing detected).
I'm using an Inspiron 15-5547 running Windows 8.1.