1. Delete any new programs that you have downloaded. Often, the cause of corruption in a computer system is a bad download that installs harmful files. If you started to get the Appcrash error on your system after downloading a new program or software from the Internet, it’s highly likely you have downloaded a bad product. Use the “Add/Remove Programs” feature in the Control Panel to get rid of the program immediately.
2. Uninstall the program that is crashing. It is possible to fix the program’s corrupted files while the program is still installed, but to make sure that you clear the program files completely, it is safest to completely uninstall it from the system.

3. Run a full scan of your computer. Your computer should already have antivirus software installed that can scan for corrupted files and either fix them or delete them from your system. If you do not have antivirus software on your computer, that could be a big part of the problem. Purchase and install antivirus software as soon as possible. Once you have the antivirus program installed, open it and click “Scan Computer.” The antivirus scan will isolate bad files and you will be given the option to remove them from your system.
4. Reinstall the program that was crashing. Now that the corrupted files have all been removed, your program should run smoothly after reinstallation.
5. Check for program incompatibility. If, after a thorough scan and cleaning of your computer and reinstallation of your program, the Appcrash errors continue, the program you are trying to use may not be compatible with your operating system or other programs on your computer.