U disk how to write software to protect

I would like to be a soft U disk is write-protected.Let me set the U-virus immunization.But how to do.? Under a software …to achieve the results can only be found locally written ..for the protection of the machine can write …Know a friend to talk about next …By the way …

USB devices can not be planted

Our school's computers can not plug in USB devices.But there is one phenomenon:MP3 plug, but the charge can not be connected to computers and mp3 does not have any tips.U disk is the same, LIGHT of the U-set lighting, but Computer is not working.(WIN2000 system for the equipment manager for …

Mouse has been in a dormant state?

Do not know whether the quality of the mouse, the pointer does not move, did not like the moment may be moving, but not direct it! Wheel and all around the top button, indicator is fixed, the infra-red optical mouse has a dark, the mouse is not a long time …