DPC_WATCHDOG_VIOLATION — Causes & Fix
Windows Stop code 0x00000133 (DPC_WATCHDOG_VIOLATION) means a deferred procedure call (DPC) ran too long or the watchdog spotted the system stuck — often an old driver or SSD firmware.
- Applies to
- Any Windows PC
- Time to fix
- 30 minutes – 2 hours
What it means
Causes include outdated storage/chipset drivers, old SSD firmware, or an incompatible driver after an upgrade. This is a Windows Stop error (a "bugcheck" / blue screen) documented by Microsoft. The blue screen shows this code; more detail sits in the crash dump (%SystemRoot%\Minidump), which usually names the specific driver or component at fault — a free tool like BlueScreenView or WinDbg can read it.
Symptoms
- Blue screen citing DPC_WATCHDOG_VIOLATION
- Crashes soon after boot or a Windows upgrade
How to fix it
- 1
Update storage/chipset drivers & SSD firmware
1. Update the SATA/AHCI, chipset, and storage drivers. 2. Update the SSD firmware from the maker's tool.
- 2
Switch the AHCI controller driver
1. Set the SATA controller to the standard AHCI driver (a classic 0x133 fix).
Frequently asked questions
What fixes DPC_WATCHDOG_VIOLATION?
Update storage/chipset drivers and SSD firmware, and switch the SATA controller to the standard AHCI driver — the most common fixes.
Last updated July 20, 2026
Guidance only — always consult a qualified professional or the official service manual before carrying out repairs.