How To Fix The ATTEMPTED SWITCH FROM DPC Error

Reader Question:
“Hi Wally, My computer restarts when I try to turn it on. It shows a blue screen and the error reads “ attempted switch from dpc “. Help me solve this problem, please. I’m using a laptop.“ - Garrett A., United Kingdom

Before addressing any computer issue, I always recommend scanning and repairing any underlying problems affecting your PC health and performance:

Step 1 : Download PC Repair & Optimizer Tool (WinThruster for Win 10, 8, 7, Vista, XP and 2000 – Microsoft Gold Certified).
Step 2 : Click “Start Scan” to find Windows registry issues that could be causing PC problems.
Step 3 : Click “Repair All” to fix all issues.

Setting up weekly (or daily) automatic scans will help prevent system problems and keep your PC running fast and trouble-free.

Wally’s Answer: The “ attempted switch from dpc ” error appears when the Windows operating system. It is caused by what’s called a “delayed procedure call” or DPC. DPC allows high-priority tasks to load before lower priority tasks on Windows. When the error occurs, the computer is restarted to prevent damage to Windows and hardware components of the computer. Here we’ll look at some ways of fixing this problem.

Cause

This error can be caused by a faulty device driver, faulty hardware, or problems in some other software. Usually, this error appears when a new video card has been added to the computer. Faulty RAM and antivirus software have also been linked to the “ attempted switch from dpc ” error.

Problem

The attempted switch from dpc or STOP 0x100000B8 error appears and the computer restarts.

Attempted switch from dpc - STOP 0x100000B8 - BSoD - Cover -- Windows Wally

Solution

Here are some ways to fix the “ attempted switch from dpc ” error.

Check For Driver Compatibility Of The Device With Your Computer

Try to remember the last major change you made to your computer. Did you install any new hardware? What was it? You may want to check compatibility for the problematic hardware with your computer. You can find this information in the device’s manual and on the internet through the manufacturer’s website.

Update The Device Driver To Fix The Error

If the problem started when you installed a new piece of hardware, you need to update its device driver to try and fix the problem. You will need to find the make and model of the hardware device. Once you have that information, go to the manufacturer’s website. Download and install the driver manually or use a driver utility like DriverDoc. It will search automatically for the driver and notify you of later updates for all devices attached to the computer.

Try Using System Restore To Fix The ” Attempted switch from dpc ” Error

You can also use system restore to fix this problem. Click here to find information on how to restore an existing system restore point.

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Is Your PC Healthy?

I always recommend to my readers to regularly use a trusted registry cleaner and optimizer such as WinThruster or CCleaner. Many problems that you encounter can be attributed to a corrupt and bloated registry.

Happy Computing!

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About the Author

Wally PhillipsWindows Wally is a helpful guy. It’s just in his nature. It’s why he started a blog in the first place. He heard over and over how hard it was to find simple, plain-English solutions to Windows troubleshooting problems on the Internet. Enter: Windows Wally. Ask away, and he will answer.