It's a SCAM/MALWARE/SCAREWARE, delete it. SEE: http://www.articlesbase.com/software-articles/dont-be-fooled-by-registry-cleaners-or-system-optimization-tools-5717887.html
Use freeware MALWAREBYTES: http://www.filehippo.com/download_malwarebytes_anti_malware/
In the install UNCHECK the TRIAL PRO version, you want the freeware version. Run a FULL Scan, delete ALL results, reboot. Use freeware CCLEANER: http://www.filehippo.com/download_ccleaner/
This freeware program will do the same and it's FREE. You will find many useful tools, the cleaner and registry will remove junk. In the TOOLS section, select STARTUP and disable ALL unnecessary startup programs, this will speedup starts and running. You must chose what to shut down. I don't know your OS, I will assume you have Windows 7, take a look at there tip for speed increase: http://www.techrepublic.com/blog/10things/10-ways-to-speed-up-windows-7/3332
Most of these All-in-one speed up my PC's are a scam, beware of frre scans that show lots of errors(Scareware), Of course you have to part with cash to FIX the errors. You can do the same better with freeware. Take a Look at FILEHIPPO: http://www.filehippo.com/
Lots of freeware and Shareware, no gimmicks, I have used it for years. Also try Filehippo UPDATE CHECKER: http://www.filehippo.com/updatechecker/
You may find it useful and it's free!