Time Machine restore only 1 partition?

[shaktimage]

Hello,
I have noticed that after some time the OS get a little filled up with "i don't know what" but somehow it grows in size and get slower, so it is time to restore the OS to its 1st day when my applications were freshly installed.
I have formatted my MBP in 2 partitions: MAC OS and DATA
What i want to do is to restore MAC OS with time machine but NOT restore DATA where my latest documents are.
So how can i restore only 1 partition (MAC OS)?
Or should i restore to day 1 both and then copy / paste my latest DATA from my external HD where Time Machine operates?
Hope it is clear enough…
Thanks to all

 

[LaWally]

You have complete control over what you restore in TM. Just select those folders you want to restore. If you want to restore the OS, in the Finder window select the Mac device, then the Mac HD, then the folders you want to restore, which would be everything but the Applications and Users folders. Then start TM.

However I would strongly advise that you rethink the need to do this. OSX does not need to be reinstalled or restored periodically to improve performance. OSX does not grow in size over time. If you are seeing an accumulation of files, they are most likely application related. That is where I would focus my attention.

My iMac has been running nearly 4 years since the initial OSX installation. The only thing I have done is update the OS as fixes, updates, and upgrades became available.

I would only consider a reinstall/restore if my iMac started crashing, freezing, or exhibiting some other unacceptable behavior that rendered it useless.