CLOCK_WATCHDOG_TIMEOUT: Windows stop error
Most likely cause: faulty or incompatible device driver interfering with CPU interrupts
Try first: Restart the computer normally
Likely causes
- faulty or incompatible device driver interfering with CPU interruptsmost likely
- CPU overclocking or unstable system timingspossible
- overheating or hardware problem with the processor or motherboardless likely
How to fix it
Restart the computer normallySafe
Power cycle the PC to clear any temporary state that may have triggered the timeout.
Run the built-in memory diagnosticSafe
Search for Windows Memory Diagnostic in the Start menu, choose to restart and check for problems.
mdsched.exeBoot into Safe Mode and check for recent driver changesChanges settings
Restart while holding Shift, select Troubleshoot > Advanced options > Startup Settings > Restart, then choose option 4 or 5 for Safe Mode. Use Device Manager to roll back or uninstall recently added drivers.
Reset BIOS/UEFI settings to defaultsChanges settings
Restart and enter BIOS setup (usually by pressing Del, F2 or F10), load optimized defaults and save. This clears any overclocking.
⚠ Note your current settings before resetting in case you need to restore them.
If that didn't fix it
Run the command 'sfc /scannow' from an administrator Command Prompt followed by a restart.
When to see a technician
If the stop error continues after driver checks and BIOS reset, have a technician inspect the CPU, cooling system or motherboard for hardware faults.
Quick answers
- What does CLOCK_WATCHDOG_TIMEOUT: Windows stop error mean?
- This is a Windows Blue Screen of Death stop error indicating that a processor did not respond to an interrupt request within the expected time, often pointing to timing or synchronization issues with the CPU.
- What causes CLOCK_WATCHDOG_TIMEOUT: Windows stop error?
- faulty or incompatible device driver interfering with CPU interrupts. (most likely) CPU overclocking or unstable system timings. (possible) overheating or hardware problem with the processor or motherboard. (less likely)
- How do I fix CLOCK_WATCHDOG_TIMEOUT: Windows stop error?
- Try these in order, safest first: 1. Restart the computer normally. 2. Run the built-in memory diagnostic. 3. Boot into Safe Mode and check for recent driver changes. 4. Reset BIOS/UEFI settings to defaults.
- What if that didn't fix it?
- Run the command 'sfc /scannow' from an administrator Command Prompt followed by a restart.
- When should I see a technician?
- If the stop error continues after driver checks and BIOS reset, have a technician inspect the CPU, cooling system or motherboard for hardware faults.