Below are some great utilites that SineTek recommends, or that have been posted in the Weekly Tek Tips section of the site. Be sure to read the manual or associated download notes before using any software, and ensure that your usage complies with all legal requirements.
CCleaner - See Weekly Tek Tips
Free PERSONAL Anti-Virus Software
Wonder where your hard disk space is? Check out this utility
Free Password Keeper for Mac and Windows, iPhone, and just about any device!
Free Windows Firewall Software