How to Unregister DLLs (Guide)
What is a DLL?
DLL refers to files that are called dynamic link libraries. They end in the suffix .dll. In short, a DLL is a file that can be used by more than one program. Like libraries contain many books that can be used by readers, DLL’s contain code that can be used by many programs.
You can find more information about DLL files by visiting Microsoft Support.
Why would I need to unregister a DLL?
Since a DLL can be used by many programs, deleting one that has become corrupt because of rogue spyware can cause all the programs that use that dll to no longer function properly. By unregistering the DLL first, you are telling all the programs that use that DLL that it will no longer be available. After unregistering a DLL, it can then be deleted without causing any problems to the programs that may use it.
How do I unregister a DLL?
Click on the “Start” button and choose “Run”. (Note: If you do not see the run command you can get instructions on how to make it visible here.) The “Run” window will appear. Type “cmd” in the box as shown below and click “OK” or hit “Enter”
This will open the Windows command prompt window. Type “regsvr32 /u filename.dll” as shown below. You will replace “filename” with the actual name of the DLL that you are unregistering.
Once you have completed unregisting all the DLL’s required, you can then type “Exit” to close the command prompt window.
