In some cases, restarting a PC can help improve its performance. Restarting can clear up a computer’s memory and help resolve issues that have built up over time, such as software glitches or slowing down due to a lack of available RAM. However, for the most part, restarting your PC won’t have much of an impact on its overall performance. In order to maintain good performance, you should ensure that you upgrade your hardware and software regularly, and use anti-virus and anti-malware programs to keep your system free from viruses, worms, and other malicious software.