Quote Originally Posted by tom
repeated formatting not good you can take backup and and when you think to reinstall windows just restore the backup again.And coming to adsense cookies ,once cookies deleted means it is gone for ever unless you start again.
I have been doing this for years. And since i have started to use PC. So it's totally ok with me. And still i am nto having any problem with this. And i think it is good to format C drive time to time since i don't store anything which is important to me on C drive.