i am updating my windows 7 for the first time i have a genuine copy of windows 7 iam afraid if something happen after updates do u think its okey to update?
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Define "something happen". Something will happen, you'll have the updates. This usually is a good thing, though problems can occur sometimes. I never update on patch Tuesday, I usually wait till at least the end of the week. Assuming no one complains, then I go ahead and update.
If your worried about your copy of windows being seen as a pirate copy, that isn't likely to happen if you have a real copy. There was one patch awhile ago that made peoples copy think they were pirate copies, but windows fix it. (and if you wait a bit you wouldn't have that problem.) What can happen is if you bought the computer from a less the reputable store and they loaded it with a pirate copy. You can take it back and demand a valid copy, odds are you'll end up buying one instead.
I vote you wait until Friday or Saturday, and then run it. Unless you know or suspect you have a pirated copy.
Windows 7 updates are delivered so quietly that I sometimes don't even notice it's happened. Nothing to worry about.