There are a few things to consider when you come across an error from file a0006621.dll. The Dynamic Link Library (DLL) is the part of your registry that assists in the removal and installation of programs.
First, the file may be a result of a faulty installation, update, reinstallation, or removal of a program. Second, you may have overwritten the DLL file with an older version from a program that you downloaded. Maybe you have a few programs sharing the same file.
Finally, you may have been the victim of malicious software. This type of software will delete files in your computer making your system eventually crash.
A misplaced, deleted, corrupted, or damaged file is a bigger problem than most end users are willing to take on. Finding a good registry cleaner that’s free of human error is the simplest and easiest solution–click here for a free scan of your computer from ZookaWare PC Cleaner.