Choosing a diagnostic starting point
Collect information before changing settings.
Windows System Information (msinfo32), Device Manager and Event Viewer can help record your configuration and the time of a failure. An event by itself may be a symptom, so compare it with the actual problem.
Find your exact error
All Windows & BSOD errors →0x0000007E
A system thread threw an unhandled exception. A very common Windows BSOD caused by drivers.
Windows & BSOD0x000000EF
A critical system process (winlogon, csrss, lsass) has terminated. Typical causes include malware and bad update.
Windows & BSOD0x0000003B
A system service threw an exception. Caused by drivers or system files.
Windows & BSOD0x00000050
Windows accessed an invalid memory address. The usual suspects are defective RAM, corrupt driver and overheating.
Windows & BSOD0xC004F074
Windows could not contact the activation server or the key is invalid. Typical causes include hardware change and offline PC.
Windows & BSOD0x80070005
Windows Update failed due to permissions or blocking. It's also often linked to corrupted UpdateDB.