If you are running a genuine copy of windows xp and updates in a
proper way (meaning you did not install any patch to bypass
Microsoft's validation), then the Updates will not cause any lags
after you restart. If you are experiencing laggy situations, it has
to do with something other than the Auto Update.
Auto Update will only lag in some systems in a few cases. Firstly,
its when you allow it to download and install automatically and you
might experience lag right after you switch on your computer.
Secondly, it might happen when Auto Update is downloading updates
or installing updates. However, lagging should not happen after you
have installed and then restart your computer
Finally, just bare with it la. Windows xp like this 1. To totally
solve this auto-update problem and trouble? Get Mac