The computer can't recognize the USB drive.

to solve this problem, first we have to determine that the U disk on other computers to use the normal, and your computer USB interface is also all normal, after inserting the computer, although there is reaction, but can not correctly display Chuppan, Explorer also difficult to find traces. If your computer gives the feedback is "the U disk there is a problem", the direct format can be resolved. Today to say is more complex bizarre situation (simple also do not need to register for everyone to solve, right?).

If you can see the options for the U disk in Device Manager, the resource manager does not have its letter and options.

You can go to the control panel of the "Management tools", find "Computer Management", into the right key to the U disk to redistribute a new letter, the replacement system automatically allocated.

Then enter the registry,

Find path to

Hkey_current_user/software/microsoft/windows/currentversion/run new Systray String value on the right, double-click to fill in the numeric data as C: WindowsSystem32systray.exe can be.

If you have a virtual CD-ROM installed in your computer software tools, you need to go to the C:windowssystem32drivers folder, the "Sptd.sys" file cut to other places to save, and restart the computer,

Then enter the Registry Editor and locate the following path

Heky_current_usersoftwaremicrosoftwindowscurrentversionpoliciesexplorer

Remove the "NOdrives" key value on the right (you must see clearly the "NOdrives" key value, not the "NoDriveTypeAutoRun" key value, delete error will cause problems with Autorun function),

Log off the account or restart it all OK. But after such toss, will make the original virtual optical drive failure, want to use the virtual optical drive software, the above "Sptd.sys" file copied back to the original folder can be. Computer Tutorials