Previous updates disabled my CPU and I want to disable future updates

That kind of errors from updates do not happen often. You should take the risk and update unless you never use the Internet since there are many helpful security updates.

It may or may not have been an update that caused your problem (I personally doubt it but, who knows?) but, if you keep M$ updates disabled, it won't be long before you will be up to your neck in viruses and other nasties.

If the tech did his job properly, your original problem should have been fixed. To avoid it in the future, set your updates to notify you when there are updates but let you choose when to download and install them. I never download and install mine until the Saturday after they come out. That way, there is plenty of time for me to find out if an update is wonky or not and I can avoid that specific one, if necessary, until M$ fixes it. Usually, by the time Saturday rolls around, M$ has either fixed the problem or pulled the update. For that reason, I manually check again for updates before I actually download and run them.

I would go ahead and let the updates you have now install themselves, then change your update settings as I suggested above and wait a few days before downloading and installing them (be sure to manually check before doing so). Also, don't try to download and install them all at once. Do them in batches of no more than ten. If any were unchecked to begin with, save those for last. You can check here at Seven Forums to see if anyone has had any problems before you download and install.

Trying to stop them now that they are on your computer, especially by hitting the power button to shut it down, is likely to wonk things up even worse. If, right after installing the updates, your computer goes south again, take it back to the tech and "ask" him to fix it correctly this time.

Once you have everything working smoothly for a couple of months, come back and ask us how to make images you can use to restore your computer to an earlier, working state should you ever run into this problem, or any other, again.

I have never heard of an update destroying the boot. There must have been something else going on. If you stop the updates, you run a big risk of being infected by malware because most of the updates are security updates.

If Windows 7 Updates from Microsoft stopped systems from booting their would be million of post all over the web stating so.
This Forum would have notices posted if their was such a problem.
Because you have had your computer to the shop I recommend starting with two things.

One is to make sure the computer is set to the proper time and date and time zone.

Two is run and post results of this Tutorial.
We have experts that can look at the log and give advice.


By Brink:
Windows Genuine and Activation Issue Posting Instructions

What worked and what did you do to get it to work?

edit.
I see we posted at the same time. Glad you got it fixed.