I have most of my programs stored and run from an external hard drive F: But when I try to run some things from that drive I get this stupid error....see below pic called "f drive" So I researched on Youtube and didnt find anything I could understand, but came across a site that mentioned "icacls" so this is some kind of file that shows permissions...see pic below called "icacls".....still makes no sense.....I went to command prompt to invoke "icacls" command and was able to change permission but still doesnt work.....see pic below called "command". I am at a loss. Normally I can figure out my problems on my own but this has got me stumped. I dont know enough about permissions. I am the only user of this computer. I run many programs off the F: drive. It is a conventional hard drive. My C: drive is an SSD so I didnt want to clutter it up with stuff I can store on external drive. Computer is DELL Optiplex 390 with 16 GB ram. Processor i5. OS is WIN10. It is annoying because I can understand the C: drive having all sorts of permissions but not an external drive. How can I open permissions on my F: drive? I use DSDPlus as my sdr program. I made a BACKUP copy of the DSDPlus folder and stored it on F: drive in a folder called "BACKUPS"......I tried to run DSDPLus from that folder and keep getting this error. After doing the "icacls" command in the "BACKUPS" folder, when I click on the "1R" executable batch file to start DSDPLus, I dont get the error, but bat file wont start. HELP!