The blog of Windows Wally, a Windows Support Technician helping common people solve frustrating computer problems.

How To Fix The Worker_Invalid Error

Reader Question:
“Hi Wally, Windows 8 WORKER_INVALID. I have been seeing this error on my new laptop. Is there a fast way to fix this?” - Rachel N., USA

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 Worker_Invalid error is a blue screen error which can start appearing randomly. This and other “blue screen of death” errors like this are not as scary as you might think. You should be able to fix this problem as long as you can identify the error and follow a few simple steps to fix it.


The Worker_Invalid error or the STOP 0x000000E4 error appears on a blue screen and restarts the computer.

Here is how it appears on older versions of Windows:

Worker_Invalid - Cover - BSoD -- Windows Wally

Windows 8:

Worker_Invalid - Cover - BSoD - 2 -- Windows Wally


The Worker_Invalid error appears when the computer memory contains something called an executive worker item, an item that should not be there.


Here are some ways to fix the Worker_Invalid error.

Start The Computer In Safe Mode

If you can’t start Windows normally, then you are going to have to use safe mode. Safe Mode only loads minimum drivers and services essential for Windows. This allows you to start Windows despite severe driver and software related problems. Click here  to learn more about how to use Safe Mode.

Update All Device Drivers

Driver software helps your computer hardware communicate with the Windows operating system. Computer drivers are used by all hardware on the computer. You can update drivers using a utility program like DriverDoc or you can update all drivers manually by visiting the manufacturer’s website. It is much easier to use a driver utility because it automatically notifies you of driver updates, downloads them for your, and even helps you install them.

Update Drivers Manually

Updating drivers manually isn’t all that hard either.

  1. Go to your computer manufacturer’s website.
  2. Search for your computer model on the website. You should be able to find the model name or service tag printed on a sticker somewhere on the computer.
  3. Use the model name or service tag to search for your computer and download all of its drivers.
  4. Install all drivers one-by-one and make sure to restart the computer when prompted.

I Hope You Liked This Blog Article! If You Need Additional Support on This Issue Then Please Don’t Hesitate To Contact Me On Facebook.

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

Windows 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.