Phenquestions
Some Windows 10 users have been reporting that they occasionally receive a DPC_WATCHDOG_VIOLATION Blue Screen, with a Bug Check code of 0x00000133, when working on their computer.
Apparently, this issue occurs because of the iastor.sys driver, is not compatible with Windows 10. Microsoft is aware of this problem and is currently investigating ways to solve this issue, by preventing the driver from being migrated when upgrading to Windows 10.
DPC_WATCHDOG_VIOLATION Stop Error
As a workaround, you need to replace the problematic driver with the Microsoft iastor.sys driver.
If you cannot boot normally, we suggest you boot Windows in Safe Mode and then follow this procedure.
Right-click on the Start button to open the WinX Menu and select Device Manager. Expand IDE ATA/ATAPI controllers.
Select the controller with SATA AHCI in its name.
To verify that you've selected the right controller, right-click the controller, select Properties, click the Driver tab, and then Driver Details. Verify that iastor.sys is a listed driver, and click OK.
Now, from the Driver tab, select Update Driver. Next, select Browse my computer for driver software.
Select Let me pick from a list of device drivers on my computer, and then finally select Standard SATA AHCI Controller.
Click on Next and follow the procedure to install the driver.
Restart your Windows 10 computer.
This should help!
Read: How to fix SYSTEM_THREAD_EXCEPTION_NOT_HANDLED Blue Screen.
This post gives you additional tips on fixing Blue Screen of Death in Windows 10.
