How to Fix usermgr.dll Missing Error (Solved)
What is usermgr.dll?
usermgr.dll is a Dynamic Link Library (DLL) file in Windows operating systems. It is part of the User Mode Scheduler service which helps manage system processes and improves overall system performance by scheduling tasks more efficiently.
Why is usermgr.dll missing?
The usermgr.dll file can go missing due to various reasons such as malware infections accidental deletion or system corruption. Malicious software may delete essential files like usermgr.dll to disrupt system operations while accidental deletion could occur during routine maintenance or cleaning.
Step-by-Step Fixes:
Method 1: Reinstall Visual C++ Redistributable
- Go to the Microsoft Visual C++ Redistributable download page at https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads.
- Download and install the Visual C++ Redistributable package for your specific system architecture (x86 or x64).
- Reboot your computer to allow the changes to take effect.
Method 2: Run SFC /scannow command
- Press Windows key + X then select “Command Prompt (Admin)” or “Windows PowerShell (Admin)”.
- Type the following command and press Enter:
sfc /scannow
This command initiates a system file check and repair process.
Method 3: Update System Drivers
- Press Windows key + X then select “Device Manager” from the menu.
- Find and expand the category containing the problematic device driver (e.g. Display adapters).
- Right-click on the device driver and choose “Update Driver”.
- Select “Search automatically for updated driver software” and follow the prompts to update the driver.
Conclusion
The usermgr.dll missing error can be resolved by reinstalling Visual C++ Redistributable running the SFC /scannow command or updating system drivers. It is essential to address this issue promptly to prevent further system instability and performance issues.