Id say reinstall the applications and if it still doesn't work then just reinstall windows

If you forgot your password you can install a software that acts like a os call Hirens BootCD Follow these steps to reset your password (1) Choose and download CD or USB software. (2) Boot from the CD or USB. (3) Select Mini Windows XP from the menu. (4) Select HBCD menu to Launch the Program. (5) Navigate the menu to NTPWedit. (6) Change Path to the Appropriate Drive. (7) Click on the username in the User list. (8) Click on Change password.

Try to hold only the command (Alt) key on start up and it should bring you to the internet recovery mode