Yes, its an EXE, so, connect your Wildfire to your PC, and simply run it. Flashing the RUU will remove your Clockworkmod Recovery and will install the Stock ROM, so, you can send it for warranty after you have successfully installed the RUU.
Samsung Galaxy SII GT-I9100 - CM10.1 | LGE Google Nexus 4 16GB - CM10.1
iPod Touch 3rd Gen - iOS 5.1.1 JB | B&N Nook Simple Touch - Stock
Device History - Nokia 5110 >> Nokia 8310 >> Nokia N-Gage QD >> Nokia 6681 >> Nokia N82 >> Nokia 5320 XM >> HTC Wildfire