CCleaner
1. Visit the CCleaner Website (Resource section has site link) and download the program. Locate the Ccleaner file and double-click it to run the file. The installation wizard will appear. Follow the onscreen instructions to install the software.
2. Double-click the CCleaner Windows desktop icon to open and run the program.

3. Locate and click the 'Registry' icon and click the 'Scan for Issues' button. This will start the registry scan.
4. Insert a check mark by the registry errors found. Click the 'Fix Selected Issues' button. Back-up your registry system by clicking 'Yes' in the prompt box.
5. Click the 'Fix All Selected Issues' button and click 'OK' in the 'Fix All Selected Issues?' prompt to fix the registry.
Eusing Registry Cleaner
6. Visit the Eusing Registry Cleaner Website (see Resource for site link) and download the program file. Double-click the file to run it. Follow the program's instructional steps in the installation wizard to install the program.
7. Double-click the Eusing Registry Cleaner desktop icon to open and run the program.
8. Insert check marks in the options under the 'Select the Sections to Scan' section.
9. Click 'Scan Registry Issue' under the 'Tasks' category.
10. Choose the registry error you want to repair and click 'Repair Registry Issue,' which is under the 'Tasks' category.
RegVac Registry Cleaner
11. Visit the RegVac Registry Cleaner Website (see Resource section for site link) and download the program file. Find the file after downloading it and double-click it to run it. Follow the installation wizard's steps to install the program.
12. Double-click the RegVac desktop icon to run the program.
13. Click the 'Scan and Clean' button. The program will scan your registry.
14. Click the 'Clean Registry' button to fix your registry.
15. Click the 'OK' button in the dialogue box.