Hello. I have been taking backups regularly with Time Machine. Now I need to format my Harddrive because the data cannot be allocated to make a new partition for windows 7. How do I do it? I just stick in the mac os x install disc, and when its all done, I connect my time machine HDD and restore all my data? Currently the Mac (MBP i5) is very slow at start up. More than a minute. Will that change? Or will the restore make the mac slow again?? thanks.