Run command is not working
In WindowsXP Professional (for personal use) I had uninstalled a faulty programme to reinstall it and saw an executable file in the start menu in the top box. It was just called "Setup.exe" and I looked at properties and it said "unknown" so I thought it was something the uninstalled programme had left. I changed it to open with notepad so it couldn't run anything iffy and removed it from the list. I found I had accidentally changed every single programme icon to open with notepad and nothing will run! I found the file I have changed and it's in the Windows/prefetch folder but now I don't know what to substitute for notepad so that all my other programs will launch again. Can you help please? I'm sorry for the noobiness, I don't use windows often nowadays