I'm a moderator at superuser, and I'd second that this happened due to the cold hard logic of an automated system, and the moderators didn't really have anything to do with this. MSU would have been the right place to ask this since I found this by accident (Question has since been moved to SU) and you wouldn't have gotten a response from the folks who'd be best suited to answer you. We're fine with you asking something like this on MSU, since we'd get notified and we'd be able to answer you more quickly.
Lets start with the question ban. While its automatic, and the exact rules for getting unbanned are not known to us, we can apply some basic numbers and common sense to it. This ban was not put in place, nor can it be removed by moderators
You have 13 closed questions of 40 questions in total, including one where a question was closed and you asked the exact same question again (This is not productive. Improve closed questions, and it goes back in the reopen queue. Do a good enough job, and they do get reopened).
Ok, slightly over a quarter of your questions. That's pretty bad but I've seen worse. A bunch of the existing questions are zero score, which might have contributed to it. Many of these were auto-deleted due to lack of answers (not out fault, its how the system works).
Here's what we can do however - some of your questions are roombaed. I'll review out those that were deleted and not user closed (so there's nothing wrong with them except a lack of love),and I'll take a look at them, and try to reopen those that meet quality standards.
However, I won't do this all at once (no point flooding the front page, and its a fair but of work) and I cannot promise this will lift the ban, or that the questions will not get reclosed in time if they are dead again.
On your part, you may want to edit those that you think can be improved. I believe you can always view your own deleted questions. Let me know if you need a link to these. Focus on ones with no closevotes and are deleted, or can be logically salvaged, not the ones that got hit by 5 off topic closevotes and such.
If any are marginal, we'll need to talk about fixing them and how, and letting me know if the ban is lifted would be awesome.
EDIT: And since I had a bit of time, here's the deleted questions on your list and some comments about them. Unfortunately, many of these are unfixable or not worth fixing. I've also undeleted a few, though I'd recomment going through them and making them better. The comments are my own opinions and aim to both prevent future issues and to help triage these. They may or may not be correct!
https://superuser.com/questions/854532/stackexchange-design-issue clearly off topic
https://superuser.com/questions/854526/stackexchange-design-issue Also off topic
https://superuser.com/questions/830247/what-means-preload-windows-in-a-laptop-specifications not really answerable
https://superuser.com/questions/797037/what-means-the-terms-sz-cp-and-bp-on-truetype-fonts closed by 5 users, not really answerable
https://superuser.com/questions/735427/where-is-the-corresponding-registry-key-for-ata-hard-drives what're you trying to do here? Focus on what you want to do, not how you want to do it
https://superuser.com/questions/740364/how-to-edit-this-resource-string-of-the-windows-dvd Not sure about if or how to fix this one
https://superuser.com/questions/629982/windows-magnifying-glass-window-turns-gray kinda hard to fix up. Its a valid question but 2 years down the road, and with no screenshot of what the issue is, its hard to answer.
https://superuser.com/questions/629134/alternative-software-to-dvdfab-application-to-rip-a-br-without-reconversion software recommendation so off topic.
https://superuser.com/questions/545709/disable-solid-colours-page-of-windows-wallpapers-menu comments are much too agressive :(. Might be a learning material recommendation, or could be fixed up.
How to change Winamp's default Keyboard Shortcuts?
How to set the color of the letters of the file-properties window, in windows 8/8.1? (x2)
Rename the user profile dir name in Windows 8 to the correct username, in a silent way?
I don't see any deleted ones. (And you've given away almost twice the rep you've earned. Dude, keep some for yourself!). I'd also add losing privileges if you dip below a specific reputation level is part of the system, and no one, moderators or otherwise owe it to you to post comments on your behalf. We have an entire site to take care of, not just one user.