Does corruption of OS is always/generally caused by Virus/Malware?

I always have a folder named 'Temp' at my desktop to keep files temporarily, which later I organise and shift at permanent places.
Since yesterday, I have noticed that its get deleted(like vanished!) automatically without my knowledge. It once got deleted, and I tried to recover the data through a recovery software 'EaseUS' but didn't find any of the files contained within that folder. It was strange that I could find files deleted many weeks/months earlier!
Ok, then, without any option and bewildered, I created the folder again, and start placing files in that. Now, again I found out that folder is missing.

I contacted Microsoft Support and a tech support person initiated a Remote session. He pasted some command on the 'Windows Powershell' and many red lines were returned. The command was like....app package..., etc. and the return statements were like....there is already a higher version of this app package, so could not.....etc.

He then told me that since the returned lines were red, it indicates that my OS is corrupted. He told that there are two options for me:-
One, I don't create a folder named 'Temp' again.
Second, I create a different account(profile) and transfer all my data to it.

I asked him why/how the windows got corrupted, so he said that it is because of virus/malware. When I asked how much sure he is, he said very sure.

But when I looked about Windows corruption on the Internet, I found out that there can be multitude of reasons why Windows can get corrupted. So, I am a little confused.

If anyone can increase my clarity on this, and provide me with any help/info regarding why the 'Temp' folder gets deleted all by itself, and/or how I can get my data back or solve this problem, I will really appreciate.

Thanks.

Welcome to the forum. Creating a folder called temp is a fatal mistake as it's same name as Windows temp so will get emptied by lots of things like disk clean if you open a CNC prompt type set you will see that variable is in use. Corruptions is most likely due to crash or not shutting down correct

I would actually name that folder "My Temporary Files." I think that would work a lot better.

Also, it sounds like you might have hardware problems, like a failing hard drive, which has absolutely nothing to do with your missing folder.

Re possible Hard Drive error have a look at event viewer for any warnings or errors relating to disk or disk controller, delayed writes that sort of thing.

I use a Pending folder and don't stick it on the desktop but on one of my data drives and just use a shortcut on the desktop.

Samuria said:

Welcome to the forum. Creating a folder called temp is a fatal mistake as it's same name as Windows temp so will get emptied by lots of things like disk clean if you open a CNC prompt type set you will see that variable is in use. Corruptions is most likely due to crash or not shutting down correct

?? I've had a temp folder on my user drive on all PCs over 25 years and never had a problem (even with Windows 10).

My experience of Windows 10 is that many problems are just due to sloppy software engineering and inadequate testing by MS.