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Driver for arduino on Windows 7?

I have recently had to wipe the hard drive of my computer due to a virus. Consequently I had to re install all of my arduino stuff. I got my IDE arduino 0022, but when I plugged in my board to get the driver again I ran into some problems. First off it came up in other devices on my control panel, and when I tried to update my driver, the ArduinoUno.inf did not come up in the driver folder. I moved the file to its own folder, so that it would actually come up when I tried to update the driver, but even when I selected the file I knew for absolute certain was correct the computer said that there was no driver in that file for my device. What is going on and what can I do?

It's the same way as Windows XP (assuming the copy of Windows XP didn't come with the driver; some copies do). Go to Device Manager and right-click the Arduino. Click the option to install the driver. The drivers are found in the "drivers" folder in the Arduino IDE directory.