1. Install the latest updates for Windows by clicking 'Start' and typing 'update' in the search box. Click 'Windows Update' in the list of the search results.
2. Open the Action Center by clicking 'Start,' 'Control Panel,' 'System and Security,' then 'Review your Computer's Status.' Follow the instructions to correct the cause of the problem. The Action Center is available with Windows 7.

3. Verify that the computer has enough memory (RAM) required to run your programs. Click 'Start,' 'Control Panel,' then double-click 'System' to view the computer's RAM. Check the minimum program requirements of the application that displays the error, either by checking the program's packaging, CD/DVD, looking it up online or contacting the manufacturer.
4. Run your antivirus software by clicking 'Start,' 'All Programs,' then clicking the program. Follow the instructions to update the antivirus program, if you have the option, to give you the best protection. Choose to run a full scan and allow the program to delete any suspicious files it finds.