If you have tried to conduct an antivirus or antispyware scan and you still notice that the computer programs freeze up often in addition to complete applications crashing such as browser crashes and error messages then the problem is your Windows registry.
Oftentimes people feel that the computer scan for viruses will be sufficient for the PC protection. This, however, is not the right approach to make systems secure. What happens is that those PC users who were solely relying on the protection softwares and were not using a high performance registry cleaner and PC optimizer software find that their Vista crashes and runs slower than it used to be. In most cases people are left with no other option than to call a PC repair expert and give him high fees to fix simple issues which a little registry repairing utility can do for you.
» Read more: Improve Vista Speed – Can a Registry Cleaner Program Speed Up My Windows Vista? Facts Explained Here