One of the hardest things to decide on is when to format your computer. When you format your PC this means permanently erasing all files that are on the computer including system and program files. Of course, before that is done, it is presumed that the files have been properly backed up or burned so that they can be restored from a CD perhaps once the entire format process has been done.
Formatting a hard drive is perhaps the easiest way out when you encounter a lot of problems with your computer. Ordinarily, it is the last resort since having to re-install that usual operating system and the programs you use have to be done one by one. Overall it would seem like a lot of work but there are some cases where you just have to re-install everything from scratch. This results normally when:
1. You Have a Virus
2. You Encounter a System Crash
3. You change Hard Disk Drives
4. You bought a new PC
One thing you can look forward to though is that you have a completely new system to which you have done away with the crash and virus issues. For sure that is quite a load off. The process may take you about an hour or so but give it some time, normally days, and you will find that you have a good as new computer in your hands.
So when you decide to reformat you computer, rest assured the whole effort is worth the wait. Just make sure you make a list of programs notes for reference in case you get lost once your PC is up and about.