SYSTEM_THREAD_EXCEPTION_NOT_HANDLED (0x0000007E) driver crash on boot
System thread generated an unhandled exception, pointing directly to a specific third-party .sys driver file on the blue screen.
Internal desktop parts run on harmless 12V DC voltage and cannot shock you. Simply unplug the wall power cable first, then touch the unpainted metal case frame to ground static electricity.
Common Symptoms & Tells
- Stop code: SYSTEM_THREAD_EXCEPTION_NOT_HANDLED
- Blue screen mentions filename: nvlddmkm.sys, atikmdag.sys, rtpx64.sys, or netwtw10.sys
- Occurs in a boot loop or immediately when opening 3D programs
Interactive Fix Checklist
0 of 3 steps completedNote the exact .sys filename displayed on the BSOD screen
The filename identifies the faulty component: nvlddmkm.sys (Nvidia ), atikmdag.sys (AMD ), rtpx64.sys (Realtek Audio), netwtw10.sys (Intel Wi-Fi).
Boot into Safe Mode and roll back or uninstall the driver
Hold Shift while clicking Restart -> Troubleshoot -> Advanced options -> Startup Settings -> Restart -> press 4 for Safe Mode. Open Device Manager -> locate the device matching the driver -> right-click Properties -> Driver tab -> 'Roll Back Driver' (or Uninstall Device).
Disable Fast Startup in Windows Power Options
Press Win+R, type 'powercfg.cpl' -> click 'Choose what the power buttons do' -> click 'Change settings that are currently unavailable' -> uncheck 'Turn on fast startup'. Click Save changes.
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