Error message on logging in

We have 2 computers hooked up by a wireless connection and after
uninstalling NAV2005 (which didn't work on the computer) on one of the
computers. I am having problems with the computer. When I boot up the
computer, I enter the password and then the following message comes up:
"Following error occurred while reconnecting to F:// (then the name of the
file). Permanent connection not available. Do you want to restore the
connection next time you log on, yes or no. I click yes but when I boot the
computer anytime, the same message comes up. This file is a share file for
sharing files and printer between our two computers. Also I checked the C
drive and there is a red X on that file. Is there anyway I can retrieve,
restore, create a new file and delete the old one. I really would appreciate
any suggestions, etc. on this. Thank you!