Issue: How to Fix Ndistpr64.sys BSOD Error?
Please help!!!! I assume that a virus infected my computer with the MS Office update or another freeware that I’ve recently downloaded. Now I’m really frustrated because my PC starts as it does normally, but after 20 seconds, it gets stuck with a BSOD, which reads as following: Stop Code: DRIVER_IRQL_NOT_LESS_OR_EQUAL What Failed: ndistpr64.sys. What does it mean? How to fix that?
DRIVER_IRQL_NOT_LESS_OR_EQUAL is a BSOD error, which occurs on Windows OS when the files like mfewfpk.sys, ndis.sys, Epfwwfp.sys, kbdclass.sys, storahci.sys or other .sys files get damaged. Typically, it shows up in Windows boot phase and prevents the system from booting up normally. If the PC user can boot up the system, for example, using Safe Mode or Clean Boot, it’s advisable to follow the instructions of the experts immediately. First of all, it’s crucial to check the system for malware using a professional anti-malware. If a powerful anti-malware does not recognize any viruses, the solution would be to update/reinstall the drivers. In case the PC can’t be started, the only solution would be to use a bootable USB drive and boot the system from it.
Unfortunately, but the matters go worse if the DRIVER_IRQL_NOT_LESS_OR_EQUAL error is related to ndistpr64.sys file. Computer security experts have already identified it as an undesirable and classified it as “malware” and “PUP.” However, the fact that ndistpr64.sys error usually prevents the system from booting makes people believe that they caught a serious cyber infection. Technically, the ndistpr64.sys is known as a software driver, which can be added to the system by the SmartService Trojan, which blocks anti-virus and other security software from running. Consequently, if the PC owner encounters the DRIVER_IRQL_NOT_LESS_OR_EQUAL (ndistpr64.sys) BSOD, he/she will not be able to boot the PC, except in Safe Mode. Anyway, the SmartService Trojan may block the anti-virus with “The requested resource is in use” error message. If you are having this exact issue, try using the following instructions:
Fixing ndistpr64.sys error:
If you encountered the DRIVER_IRQL_NOT_LESS_OR_EQUAL error while booting and the culprit of the issue is the ndistpr64.sys. Since this driver software is not crucial for system’s performance, it’s advisable to remove it without a delay. For this purpose, try to boot the system into Safe Mode and then launch an elevated Command Prompt:
Step 1. Remove the ndistpr64.sys file
- Restart your PC.
- When the system configuration window shows up, select Troubleshoot.
- Click on Advanced Options.
- On the Startup Options screen, select Enable Safe Mode and then Restart.
- When the system boots up, press Windows key + R and type cmd.
- Right-click on the search results and select Run as Administrator.
- OR right-click on Windows key and select Command Prompt (Admin).
- Type DEL /F /S /Q /A “C:\Windows\System32\drivers\ ndistpr64.sys” (without quotes) and press Enter.
Step 2. Run a scan with anti-malware
Before rebooting the system after the removal of ndistpr64.sys file, we would recommend to run a scan with a professional anti-malware. As we have already pointed out, the file itself is not the curcial system file. Contrary, it is recognized as a potentially unwanted program or virus, which may lead to serious issues, including total system crash or the infection of ransomware. Often it is distributed along with other malicious files, so we would strongly recommend running a scan with Reimage or another professional anti-virus.
In case the SmartService Trojan blocks Reimage or another anti-malware that is installed on your PC, try to run Windows Defender offline or install another security software. If that does not help, enable a System Restore Point if you have created it before the issues with the BSOD started. Hopefully, this article was useful and you have managed to fix ndistpr64.sys BSOD without difficulties.
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