Amit,
I have a licensed copy of Windows XP SP1.
1) So, is there any issues like "you can activate n no. of times" ?
2) is there any h/w issue i.e. "if there is n no. of changes in h/w devices it won't activate" or once a product is activated will it ask for reactivation if there are n no. of h/w changes?
3) I am asking this because suppose in future if I have to install windows on a new machine, will I face any problem?
4) Like I said before, I have SP1 CD, but with automatic update downloads, my system is updated with SP2. So, If I reinstall windows on a different machine, how can I install those updates too without downloading again from Microsoft site?