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Windows 7: BIOS loading two time if any usb storage devices inserted

07 Sep 2012   #1

Windows 7 Professional x64
BIOS loading two time if any usb storage devices inserted

I have ASUS laptop Model : K601N Processor : T4300 @2.10Ghz Ram : 4gb 800MHz Hardisk : 500gb Graphics : nVidia G102m Biosverson : 208 OS :Windows 7 Pro OEM If any usb storage devices devices(Memory card, pen drive or USB hard disk) connected when system start-up or restarting bios loads and appear a black screen and then bios loads again and OS loads normally. If any external storage devices removed when start-up,system start-up normally. It doesn't happen for USB modem, keyboard, webcam and pen tablet. Normally I keep connected my pen tablet & memory card inserted (I'm using it as Ready boost drive). 2 to 3 days I'm facing this problem. What I'm tried:- In manufacturer's web site 2 versions of BIOS available.I tried both Resetting BIOS to user defaults/ factory default Booting order change Remove internal hard drive and boot without hard disk- normal start up, pendrive or memory card inserted-Bios loads twice (After bios loads it shows OS not found becoze of hardisk removed) Disable USB devices in bios and pendrive inserted- normal start up How can I fix this error? My warranty is over and in my country there are no authorized ASUS service centers

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 BIOS loading two time if any usb storage devices inserted

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