I dont have multiple accounts on windows. Only 1 user account which is the owner but when i try to do some things a message comes up and says you must logon as the admin. My task manager has been disabled by the admin and i recently had the virus windows police pro but it is removed now but when ever i try to open any file other than an internet browser a message comes up and says ""Windows cannot find 'C:\Program Files\WindowsMediaPlayer\wmplayer.exe'. Make sure you typed the name correctly, and then try again. To search for a file, click the Start button, and then click Search.". but when i right click and open the file by selecting "run as" it will open the file. I am trying to install a program and when i click the setup file it gives that message and when i right click the setup file and select run as, that is when it tells me that to open that file i must logon as the admin. please tell me how to fix this or suggest another way to install the program. Also, when i go to control panel and try to open the user accounts a message comes up and says "Windows cannot find 'rundll32exe'. Make sure you typed the name correctly, and then try again. To search for a file, click the Start button, and then click Search."