You have 2 tabs. Dont use the special-gamebooster tab, go to the other tab where you can boost the whole window to your likeings. Drop everything unneeded and hit start. Thats all.
This gamebooster comes from the iobit-guys. They also have a great memory-optimizing tool inside advanced system care. Just do this steps:
1. go to
Speed Up Slow Computer, Keep PC and Internet Secure, Freeware Download - IObit
2. install and start, but DONT do a scan
3. go to tools, click smart ram, click config, check everything except clean clipboard
4. go to advanced system care config and uncheck start with windows
5. restart your window
6. enjoy 300mb d3-clients