Causes of a DLL error
Discussed below are common causes of a DLL error:
o Missing or Corrupt DLL file
o Malware infection
o Registry issues
o Outdated files
How to troubleshoot a DLL error
Depending upon the cause of the DLL error, you can use either of the following steps to fix the DLL error:
Remove any sign of malware that is causing DLL error
Many DLL errors, such as rundll errors occur due to malware infections. Malware programs, such as viruses and worms deliberately edit the codes embedded in DLL files and make them inaccessible. As a result, a DLL error is generated every time an application or the operating system tries to access the infected DLL file. To fix a DLL error that is caused by a malware infection, perform a full scan of your entire system to delete or quarantine the malware and repair the infected file. To prevent malware programs from breaching your system’s security in the future, install reliable antivirus and antispyware tools on your system.
Reinstall the missing DLL file
You can usually fix the DLL error that occurs due to a missing DLL file by reinstalling the DLL. You must try to reinstall the application that generated the error to replace the missing file. You may also try to obtain the missing DLL file from a reliable source on the Internet.
Repair registry entries
The registry is the central repository of your system and stores important data, including entries related to all your DLL files. DLL errors, such as shell32.dll errors occur when the entries related to this file are damaged or incorrectly modified. To resolve such errors, you will need to repair their entries. However, editing registry entries is a highly technical job and should not be attempted if one does not possess the required expertise. We recommend that you use an efficient registry cleaning tool to repair the incorrect DLL entries in the registry. To repair damaged registry entries and to get rid of all the unwanted information accumulated in the registry, perform a registry scan using an advanced registry cleaning tool.
Update your drivers, software, and operating system
Outdated files may also cause DLL errors on your system. To prevent this from happening, regularly update your drivers, software, and operating system with the latest security releases and updates that are released by their manufacturers.