What is nssinstallstub.exe file ?

In some case nssinstallstub.exe can harm your computer. Therefore, please read below to decide for yourself whether the NSSInstallStub.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

Follow steps bellow to try fix the problem with nssinstallstub.exe

1. Use cleanmgr

To run the command cleanmgr :
Press Windows key + Q.
Enter cmd in search box , followed by the combination Ctrl + Shift + Enter to run it as Administrator.
Enter the command cleanmgr and press Enter.

2. Use sfc /scannow

To run the command sfc /scannow :
Press Windows key + Q.
Enter cmd in search box, followed by the combination Ctrl + Shift + Enter to run it as Administrator.
Enter the command sfc /scannow and press Enter.

3. uninstalling programs :

To uninstall unnecessary programs :
Open the Start menu (Press Windows key + X) .
Click the first menu item Programs and Features.
Search unnecessary programs in the list of installed programs, .
Click the software you want to uninstall.

4. using msconfig

To run the command msconfig :
Press Windows key + Q.
Enter cmd in search box, followed by the combination Ctrl + Shift + Enter to run it as Administrator.
Enter the command msconfig and press Enter.

5. Automatic Update

To run the command wuauclt /ShowWindowsUpdate:
Press Windows key + Q.
Enter cmd in search box, followed by the combination Ctrl + Shift + Enter to run it as Administrator.
Enter the command wuauclt /ShowWindowsUpdate and press Enter.

6. Use resmon command

To run the command resmon :
Press Windows key + Q.
Enter cmd in search box, followed by the combination Ctrl + Shift + Enter to run it as Administrator.
Enter the command resmon and press Enter.

7. use DISM.exe

To run the command DISM.exe /Online /Cleanup-image /Restorehealth :
Press Windows key + Q.
Enter cmd in search box, followed by the combination Ctrl + Shift + Enter to run it as Administrator.
Enter the command DISM.exe /Online /Cleanup-image /Restorehealth and press Enter.

nssinstallstub.exe descriptions

NSSInstallStub.exe is not essential for the Windows OS and causes relatively few problems. NSSInstallStub.exe is located in a subfolder of “C:ProgramData” (common is C:ProgramDataNortonInstaller).;Known file sizes on Windows 10/8/7/XP are 1,851,088 bytes (37% of all occurrences), 1,851,128 bytes, 1,850,616 bytes, 1,843,440 bytes or 1,357,576 bytes.;The program has a visible window. The file is a Verisign signed file. The file has a digital signature. The program starts when Windows starts (see Registry key: MACHINERunOnce, TaskScheduler).;The file is not a Windows system file.;NSSInstallStub.exe is able to monitor applications.;Therefore the technical security rating is 26% dangerous.