People with Administrator or Limited accounts usually have no problem connecting to the Internet through a dial-up modem. But when Guest account users sit down at that same computer and try to connect to the Internet, Windows XP, Vista and Windows 7 refuses to let them. What gives? It’s a security measure built-in to Windows, […]

I cover Windows’ built-in firewall in my books Windows XP For Dummies, Windows Vista For Dummies, and Windows 7 For Dummies. But if you ever need to turn on the firewall or make sure that it’s turned on and protecting your PC, follow these steps:

Q: I bought a Rocketfish bluetooth wireless mouse, and it didn’t come with a receiver to plug into the computer. I read on the back, and it said I needed a Bluetooth-enabled computer. Is there anything I can buy to make my computer Bluetooth-enabled, like a receiver or something? A: A group of companies created […]

Q: I have a desktop PC in Windows XP Professional. I bought a laptop with Windows Vista. Can both computers use my same wireless router to connect to the Internet? A: Yes, you can use the same wireless router with both your old desktop PC and your new Acer laptop. Routers don’t care what operating […]

Q: I followed your instructions in Windows Vista For Dummies to set Vista to be more like Windows XP and use fewer resources. Everything is running fine, but my picture files are no longer listed in Computer as small pictures but, instead, as icons with the file names. This is not XP-like but more like […]