Actually, the problem began when I tried to download some stuff on Chrome and always got a message more or less like "Download failed-error".
I reported this to Chrome and hope they will give me an answer whenever. Maybe you people might give me a hand with this.
Because of this I switched to Firefox, who is configured - just like Chrome - to place my downloads in my folder D:\Downloads.
After three tries nothing happened. I had two .exe files in the folder but that should not be the cause of the problem.
Looking around, I found Firefox had saved my downloads in C:\Users\Ernesto\Downloads
I cut the files to paste them in downloads, but was not allowed because the D:\Downloads folder miraculously transformed (or should I say transubstantiated) into a read-only folder and did not allow me to paste my downloads there.
Frankly, I don't know how these things happen. But, oh well. So I ran the command
attrib -h -r -s /s /d D:\Downloads\*.*
To my surprise I got the reply that the whatchamacallit system could not change the attributes of each of the files inside the folder.
These were (and still are - and work perfectly from the now "read only" folder) AdwCleaner.exe and sd5_setup.exe
So I repeated the same operation but, instead of the *.* at the end, I put the name of each file. So this was a two commands operation.
Now, that didn't work either. The "you know who" said "I cannot change the attribute of AdwCleaner.exe - and repeated the same phrase for the other file.
When I right-clicked on the files, the drop-down menu had no "delete" function. Anyway, that wouldn't have solved the problem.
Going to Properties tab Security didn't work for me. Of course, I'm no expert, but I have done that operation of editing permissions (sometimes in a kind of roundabout way). However, a very long time ago, and could not find the "roundabout" way.
I tried to takeown /f the folder and do an icacls but, as you surely have guessed, that didn't work either.
I could copy the files (not cut, remember) to another folder, but that would not solve the problem as it should be solved.
Of course, I cut open a new folder and change the download settings on the browsers. That would be a temporary solution (unless they mysteriously become read-only also).
But that's not the right way. One must solve the problem of removing the read-only attribute and I have run out of my limited options. I'm just a junior member in this forum and I don't have a PhD in Computer Science (though I think that if I had one, I still wouldn't know what to do).
So here I am again. And, by the way, the sfc /scannow still hasn't found any integrity violations. Thanks for your help Aura.
Maybe you can help me again??? Or somebody else???
Well, it's almost 4:00 AM here so I will consult with my pillow now, and hope that by sometime tomorrow somebody can call me an idiot because I didn't do such and such.
Good night everybody and good luck.