This weekend I noticed that trying to delete a file from a jump drive caused Explorer to hang. When I got to work, I also had problems adding a subdirectory on my server. After using Task Manager to cancel out a few times, I noticed that about half the files in the directory I was trying to add to were now gone. Did a search from the server, no files. I KNOW that they are there, but can't find them in any of the programs I've tried (Filezilla, Explorer, AutoCAD). So, have copied all the remaining files to another folder, no problem. Now, however, any file I try to delete hangs Explorer at the "calculating time remaining". I had to reboot the last time as even Task Manager couldn't get Explorer to close.
I've tried to run Hijackthis, but can't seem to get it to run; have run online scans for viruses and malware, and have run CCCleaner, MalwareBytes and have Webroot with Antivirus running; no apparent virus/malware infection.
I'm turning it over to you experts: any suggestions would be greatly appreciated!