Having a reliable antivirus program is essential for any computer user, especially if you're using Windows. While MacOS is generally secure, it's still worth having an antivirus program on hand to fix system problems. If your computer is experiencing major issues, you may need to reinstall Windows or MacOS and start from scratch. This will erase viruses and malware, reset your Internet connection settings, and leave you with a clean slate.
Before doing this, make sure to back up all your data. If your monitor or screen is faulty, check the warranty or visit a repair shop. Whenever you make major changes to a Windows system, such as installing an important suite of applications or performing an operating system update or repair, it's a good idea to start with a full backup. When it comes to repairing a computer, the first step is to identify the problem and determine if it's something you can fix yourself. If the issue is more complicated, consider seeking professional help.
Some steps may require additional work to restore your PC to its previous state. DISM (Deployment Image Servicing and Management) is a useful tool for repairing files; however, it often requires several passes before the problem is resolved.