Justa -

Had you read the instructions, you'd have seen that the proper procedure is "uninstall." "System Restore" will NOT remove SP2, since many files that your old Registry called will have been replaced by different ones, sometimes with the same names.

It's also quite possible that you didn't look at the recommended setup after installation?

Generally, the problems people see with SP2 are in server versions or where people are using "marginally compliant" programs (like Tweak UI) and/or "complex games." There are a few "legit" programs for which problems are known, and generally fixes are readily available; but in order to obtain the security improvements intended the programs need to be fixed to work with SP2.

SP2 does add quite a bit to the operating overhead, and especially on a laptop, where hard drives are much slower than in desktop machines* some slowdown - pending proper setup - is not unexpected.

* Most laptop hard drives "park" the heads between reads to minimize shock damage, so a very large lag occurs in each new read. The published specs ignore this, but typical laptop drives give about 10x the "seek time" in practice when compared to desktop machines with drives having similar quoted specs.

John