key advanced systemcare 12.3 is a popular PC optimization tool. It can help you clean up junk files and remove unnecessary programs to free up more space. It also has a powerful antivirus engine that can scan your PC for viruses and malware. This software is easy to use, with a simple interface that anyone can understand. There are options like "One-click Optimize" which will automatically optimize your computer based on the settings you have chosen, or "System Guard" which will protect your computer from malicious programs by scanning them before they get installed on your system.