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Hi, I have a G71-343US Notebook running on Windows 7 Home Premium (64-bit). Every USB device I connect to my laptop disconnects every few minutes. Can't work like this because my internet, pen drives and everything disconnect when I'm in middle of work. I tried the following options to fix the error.
1. Restore drivers by HP Recovery Manager.
2. Restore windows through Recovery Manager.
3. System Restore through restore points.
4. BIOS Update
5. Tried to boot my laptop by Knopix Live CD. All my USB ports works properly without any problem in Knopix system.
Can anyone give me a good solution to fix this problem. I will greatly appreciate your help 
