How To Solve Windows Host Process Rundll32 High CPU Issue.

How To Solve Windows Host Process Rundll32 High CPU Issue.

That file or application shouldn’t be running all the time when you are using the computer. You will often see it in the Task Manager when you are installing an application or uninstalling one. Here’s an explanation about its purpose on your operating system. When you install a piece of software, you normally see different DLL files located in its installation folder.

The DLL extension name (.dll) stands for Dynamic Link Library. This piece or pieces of files are used to store common bits of application logic that can be accessed from numerous applications. Since there is no way to start a DLL file directly, the “rundll32.exe” application is used. Its function is mainly to launch functionality stored in shared DLL files.

This executable file or program is a valid component of Microsoft Windows and shouldn’t be considered a threat. The exact location of the file is “C:\WINDOWS\system32\rundll32.exe”. If you see a similar file located on a different folder, it is probably a spyware or malicious program disguising itself. If you see the file in the Task Manager, restart your computer.

Next, check the Windows Task Manager again to see if the “rundll32.exe” file is running again. It should not appear in normal computer operation. If you see the file again, one of your startup applications is probably launching the program during startup. If this program consumes too much CPU, try disabling your startup applications one by one until you figure out which application is launching the “rundll32.exe” program.

If you find out which startup application it is, just disable it from the startup process if you don’t need it or it is not important.