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


Reader Question:
“Hi Wally, I’m using Windows 8 on a laptop. My computer was working fine but today I found this error on the screen Bugcode_PSS_Message_Signature. Please tell me what this means and how to solve it. Thank You!“ - Nicholas K., 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 Bugcode_PSS_Message_Signature error appears when Windows is about to start. It is a blue screen error that confuses people with its long and cryptic name. Most people don’t know what to make of these blue screen errors and have to look online for a solution. Luckily, you don’t need to be an expert to fix these problems.


The Bugcode_PSS_Message_Signature or STOP 0x000000C3 error appears when the computer starts. It crashes Windows after showing the error message on a blue screen.


The Bugcode_PSS_Message_Signature error is usually caused by corrupt system files. Damaged system files as well as incomplete installation or un-installation of a program can also cause these problems.


Here are some ways to fix the Bugcode_PSS_Message_Signature error:

Use Automatic Startup Repair

The first thing you should do if Windows is not loading correctly is to try fixing it using Automatic Startup Repair. You will need to boot the computer using a Windows installation disk. If Windows 8 is installed on the computer than use a Windows 8 disk and vice versa. The repair options are a bit different for different versions of Windows but they should be easy to find.

Bugcode_PSS_Message_Signature - Repair - Troubleshoot - Startup Settings - Automatic Repair -- Windows Wally

Use System Restore To Fix The Bugcode_PSS_Message_Signature Error

System restore is a feature that returns Windows to a previous state. This can be used to undo any changes that caused the Bugcode_PSS_Message_Signature error. System restore can be used from within Windows or by using a bootable Windows installation disk. Click here to learn more about how to use system restore.

Start The Computer In Safe Mode

If the computer isn’t loading Windows correctly then try starting it in safe mode. The computer only loads basic and necessary drivers in safe mode. Most blue screen errors are caused by driver issues. Safe mode can help you start Windows and fix Windows by updating drivers and running scans.

Bugcode_PSS_Message_Signature - Advanced Boot Options - With Networking -- WindowsWally

Here’s how to run safe mode in Windows 8. For Windows 7 and older versions, click here.

Use The SFC /SCANNOW Command

The Bugcode_PSS_Message_Signature error can be caused by damaged system files. These files can be fixed using the sfc command:

  1. Press Windows Key > type cmd > right-click Command Prompt > Click Run as administrator
  2. Type sfc /scannow > Press Enter
    Bugcode_PSS_Message_Signature  - sfc scannow - 2 -- Windows Wally

Scan The Computer’s Registry To Fix The Bugcode_PSS_Message_Signature Error

The Windows registry is a vital component of the Windows operating system. Blue screen errors can be caused by incorrect installation or un-installation of a software. In that case, running a registry cleaner can help fix the problem. We recommend that you use WinThruster to scan your computer and fix registry issues. WinThruster also runs maintenance tasks to keep the computer running smoothly. Make a system restore point before cleaning the registry to make sure that the registry is backed up.

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.