The problem is probably that the registry lists the program and so Uninstall sees that there's a program to uninstall. On the other hand it goes to the location of where the program is supposed to be but finds no files to uninstall.
If Windows was written correctly it should then give you the option to remove all registry entries for that already uninstalled program. it does not because of the infinite intelligence of Microsoft, they NEVER make mistakes after all....
You can do one of two things at this point, 1. go through the registry by hand to locate all Sentinel entries and remove them, or 2. you find/buy a program that can search the registry for no longer available programs & it will list these for you to select for it to remove all registry entries.
Once you remove all Sentinel registry entries, however you do it, you should be able to install Sentinel again.
Phil KE3FL / KPC3FL
Last Edit: 01 Feb 2012 16:10 by Philke3fl. Reason: forgot #2