Is it safe to use third-party software to improve my PC’s speed? By YL ComputingSpeed Up PC It depends on the third-party software. Be sure to read reviews, check to see if the software is from a trusted source (such as a large tech company), and run a malware scan to make sure it isn’t malicious. Related Content:What are the best ways to free up disk space on a PC?How can I prevent my PC from running slow?Does more RAM improve PC performance?