I have 2.03 installed since yesterday. Unfortunately I also experienced now a few instances where my system freezed or slowed down extremely - two times it required a hard reset, other times I could restart the system. Starting the system is not slowed down, but at normal speed. I cannot relate this directly to Composer although I worked yesterday and today several times with Composer,
while I did not have this problem before.
I already reported yesterday Composer 2.03 crashed but could not yet reproduce this.

In XP there is a way to monitor the startup times and analyse the logfile for specific delayed driver loading or else. Í did forget how but it was easy, may be Mark can give a suggestion how to do.

Cheers Jaap