1. Press 'Start' on your taskbar. Highlight and click on 'Search' from the 'Administrator' menu box. Select 'All files and folders' and under 'All or part of the file name' type '*.tmp' in the search box. Click the menu arrow and select 'Local Hard Drives (C:) and press the 'Search' button.
2. Wait for Windows to finish searching for the files and then delete the files that are displayed in the 'Search Results' box. This step will delete all of the temporary files on your computer.

3. Run Windows' 'Cleanmgr.exe' tool. Press the 'Start' button and select 'Run' from the menu box. Type 'cleanmgr' in the run command box. Next, click the 'OK' button. The tool will delete any unnecessary files that are on your computer's hard disk.
4. Use the 'System File Checker' utility to scan your computer and locate any corrupt or missing files. Press the 'Start' button and select 'Run' from the menu box. Next, type 'sfc/scannow' in the command box and press 'OK.' If the utility finds any missing or corrupted files, you may need to insert the Windows installation CD into your CD/DVD drive, so that the utility can replace the damaged or missing files.
5. Browse the Internet and search for a reputable registry software utility. For instance, RegCure can fix EXE and other types of errors that are affecting your computer's performance. Download and install the utility on your computer. Click on the RegCure icon to start the setup installation.
6. Run RegCure utility, so that it will scan your computer and fix the 'EXE' errors. The utility will repair and optimize your Windows registry.