1. Run OBS as Admin. Right click on the shortcut, properties, advanced, check box, ok, apply, ok.
2. In OBS, go to "Settings -> Advanced" and set "YUV Color Range" back to "Partial".
3. Use the Quick Sync Video (QSV) encoder instead of x264
4. Record to MKV or FLV. If you record to MP4 or MOV and the recording is interrupted, the file will be corrupted and unrecoverable.
If you require MP4 files for some other purpose like editing, remux them afterwards by selecting File > Remux Recordings in the main OBS Studio window or enable Auto Remux in the Advanced Settings.
5. Display and Game Capture Sources interfere with each other. Never put them in the same scene (Scene).
If still having issues after making all those changes, post new log in this thread.