The STOP 0x0000004F error will always appear on a STOP message, more commonly called a Blue Screen of Death (BSOD).
0x0000004F Errors
One of the errors below or a combination of both errors may display on the STOP message: The STOP 0x0000004F error may also be abbreviated as STOP 0x4F, but the full STOP code will always be what’s displayed on the blue screen STOP message. If Windows is able to start after the error, you may be prompted with a Windows has recovered from an unexpected shutdown message that shows:
How to Fix STOP 0x0000004F Errors
Follow these steps in the order they’re given below to try the simpler solutions first.
Need More Help?
If you’re not interested in fixing this problem yourself, see How Do I Get My Computer Fixed? for a full list of your support options, plus help with everything along the way like figuring out repair costs, getting your files off, choosing a repair service, and a lot more. If uninstalling Avast fixes the problem, download the latest version from their website and reinstall. Running a clean install of the latest available version is unlikely to make the 0x0000004F BSOD reappear. The 0x4F BSOD indicates some kind of issue related to the network drivers (NDIS is an initialism for Network Driver Interface Specification), and the quickest way to fix a possible issue with network drivers is to simply replace (update) them. You’ll need to replace RAM that has failed tests. There’s nothing repairable about your system memory.
