Windows 7 Avoid problems

It sounds like you've had some unpleasant experiences with freeware causing issues on your system. Freeware, especially from unknown sources, can sometimes contain malicious software that can harm your computer. It's always best to be cautious when downloading software, ensuring it's from reputable sources.
Regarding the blue screen you encountered, known as the "Blue Screen of Death" (BSOD), it can indicate various issues with your system, such as hardware failures, driver problems, or software conflicts. Reinstalling Windows can sometimes be a necessary step to resolve such issues, especially if the cause is not immediately clear.
Having a reliable malware remover is indeed helpful in maintaining the security of your system and protecting it from threats. Regularly scanning your system for malware and staying cautious while browsing or downloading files can help prevent such incidents in the future.
If you have any specific questions or need assistance with anything related to your Windows system, feel free to ask!