Fix USB unrecognized fault in Win7 SP1

Previously, users have reported that in Windows 7 SP1 or Windows Server 2008 R2 SP1, users will encounter the inability to access the USB interface device, and it is very troublesome to solve. Recently, Microsoft confirmed the existence of the problem and released a patch to help users solve this problem quickly.
Microsoft pointed out: "When users use SonicStage Mastering Studio software in Sony notebooks, they will encounter this problem. When using this software to import or export files in Sony PCM-D series digital audio storage, Will appear ‘ can not find PCM-D series devices, please check the connection & rsquo; reminder. ”
Microsoft also said that other USB interface storage devices, including USB floppy disk drives, may also be plagued by this problem.
Users who encounter the above situation can obtain the patch provided by Microsoft for free, KB2496290: