How Do I Repair ERROR_NOTIFICATION_GUID_ALREADY_DEFINED Error

About a week ago, I upgraded my windows 7 to 8.1, but i don't really like the results, when my computer starts up, it s always pop up ERROR_NOTIFICATION_GUID_ALREADY_DEFINED problem and the just a Blue screen, it disappears after like 2-3 minutes. How should I do to solve ERROR_NOTIFICATION_GUID_ALREADY_DEFINED?

I suggest you to perform the methods provided below and check if it helps.

Method 1:Troubleshoot ERROR_NOTIFICATION_GUID_ALREADY_DEFINED error with the help of SmartPCFixer.

1. Click the below button to download SmartPCFixer.

2. Double-click the application, you will see the below interface.

3. Click [Quick Scan] to run a whole scan for your computer.

4. Click [Fix All] to repair ERROR_NOTIFICATION_GUID_ALREADY_DEFINED problem.

Method Two: To repair ERROR_NOTIFICATION_GUID_ALREADY_DEFINED problem in time, you can use sfc utility to do a full check for your system.

1. To do this, click Start, type Command Prompt or cmd in the Search box, right-click Command Prompt, and then click Run as administrator. If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.

2. At the command prompt, type the following command, and then press ENTER:

sfc /scannow

Reference: https://support.microsoft.com/en-us/kb/929833

Is it time for a PC checkup?

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Please Note:The Windows Registry will be scanned and repaired by SmartPCFixer. This application
will remove damaged registry entries and repair the windows registry. The scan and repair process will take approximately 2 minutes.

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