Run PowerTools Lite 1.9
1. Visit the Macecraft website. Click the 'Start Download Now' button, and enter your email address to begin the download of PowerTools Lite 1.9.
2. Run the Powertools setup, and agree to the terms of the software. Click 'Next' at the prompts, and click 'Finish' to open PowerTools Lite.

3. Select 'Clean And Fix My Computer.' Wait for the process to detect and repair your computer system from errors. Reboot your system once the process is complete.
Run Microsoft Fix it Center
4. Visit the Fix it Center website. Click the 'Try It Now' button.
5. Run the 'FixitCenter_Run.exe' setup. Agree to the terms of Fix it Center, and complete the installation.
6. Open Fix it Center, and select one of the repair options based on the error messages your system displays. For example, if your Internet Explorer is constantly freezing, click 'Run' next to 'Internet Explorer Freezes And Crashes'. Click 'Next' at the prompts to begin the troubleshooting and repair.
Run ClamWin Free Antivirus
7. Visit the Clamwin website. Click 'Download Now,' and run the 'clamwin-0.96.2.1 --setup.exe' setup file.
8. Click 'Next' at the prompts, and agree to the terms of the ClamWin Free Antivirus.
9. Open the software. Select the hard drive you wish to scan. Select 'Scan'. Choose the repair option once the scan is complete to get rid of any system infections. Reboot your system once the repair is complete.