The l1wdef.dll file comes from an unknown process. While this may sound scary, it really isn’t as bad as it sounds. There are many registry errors that have yet to be identified and this is probably one of them. Run the free scan below to check for sure.
Once ZookaWare PC Cleaner finishes scanning your computer, it will list all the registry errors currently on your computer. When you see how many registry errors are on your computer, you will want to purchase a license to remove them.
The license comes with ZookaWare PC Cleaner’s 100% registry error removal guarantee and a 60-day money-back guarantee. Once the registry errors are gone, your computer will be running like new.