Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I'm planning on wiping my computer and simply install Windows all over again (clean install), I am already on the process of backing up all my stuff, personal files, programs, serial numbers, etc...

But I realized that over the years, Windows have downloaded a lot of hotfixes via Windows update, and I would NOT like to download all that again (mainly because my internet connection just sucks and I don't want to waste bandwidth after reinstalling Windows for something I already have).

So is there a way to backup all that updates and then simply install them? Where does Windows keep them? If I back them up, how do I "install" them again in the new clean Windows (if possible)?

I'm using Windows 7 Pro SP1, 64-bit.

share|improve this question
FYI: Description of the standard terminology that is used to describe Microsoft software updates - It explains the difference between a Hotfix and an Update. :) – Ƭᴇcʜιᴇ007 Sep 13 '12 at 20:00
Thanks! i have no idea... – DiegoDD Sep 13 '12 at 20:20

You should just download SP1 for post install and let the rest of updates post SP1 re-download post your SP1 install. It is a pain to let them re-download, but it's generally a better idea than trying to figure out which ones you need, whether or not you have the install file still in your temp directories and so forth. You'll spend far more time doing that than the system will spend reinstalling them through Windows Update (unless you're on dial up).

share|improve this answer

If you have a friend with a faster internet connection you can make a windows update offline disc, it will install all your updates from a DVD or USB automatically, reboots and all, make the DVD at your friends house, then use it at home.


enter image description here

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.