How to Fix Launch.dll Errors
Do not download launch.dll from a “DLL download” website.
There are many reasons whydownloading a DLL file is a bad idea.
Restore launch.dll from the Recycle Bin.

The easiest possible cause of a “missing” launch.dll file is that you’ve mistakenly deleted it.
Run a virus/malware scan of your entire system.
Use System Restore to undo recent system changes.
Reinstall the program that uses the launch.dll file.
Try your best to complete this step.
Update the drivers for hardware devicesthat might be related to launch.dll.
The launch.dll file may or may not be related to video cardsthis was just an example.
The key here is to pay very close attention to the context of the error and troubleshoot accordingly.
Install any available Windows updates.
Manyservice packsand otherpatchesreplace or update some of the hundreds of Microsoft distributed DLL files on your machine.
The launch.dll file could be included in one of those updates.
It’s important to update Windows even if the launch.dll file isn’t one of the included updates.
Test your memoryand thentest your hard drive.
If the hardware fails any of your tests,replace the memoryorreplace the hard driveas soon as possible.
Repair your installation of Windows.
Use a free registry cleanerto repair launch.dll related issues in the registry.
Perform a clean installation of Windows.
This will erase everything from thehard driveand install a fresh copy of Windows.
If none of the steps above correct the launch.dll error, this should be your next course of action.
All the information on your hard drive will be erased during this step.
Troubleshoot for a hardware problemif any launch.dll errors persist.
After a clean Windows installation, your DLL problem can only be hardware related.
Need More Help?
There are several ways launch.dll errors can show up on your gear.
Here are some examples:
The launch.dll file isn’t the same as launcher.dll.
The context of the error is an important piece of information that will be helpful while solving the problem.