Dell optiplex gx 620 usb memory device not working Tags: Drivers Optiplex Dell Devices USB Windows XP Last response: July 12, 2012 9:50 AM in Windows XP Share Saindra de Silva July 9, 2012 1:38:56 PM my Dell Optiplex GX 620 is loaded with win xp sp3. usb mouse and keyboard works. when pen or external hdd is connected it says unrecognised device. pls help More about : dell optiplex 620 usb memory device working ksiemb a b \ Driver July 9, 2012 1:46:58 PM Saindra de Silva said:my Dell Optiplex GX 620 is loaded with win xp sp3. usb mouse and keyboard works. when pen or external hdd is connected it says unrecognised device. pls help This may help. Refresh the USB Stack a. Bring up - Device Manager – b. Expand USB Serial Controllers - RIGHT CLICK on EVERYTHING and UNINSTALL all except the category itself. c. REBOOT the computer. This refreshes the drive and the USB stack m 0 l Saindra de Silva July 12, 2012 9:50:40 AM i TRIED THE ABOVE AND STILL ITS UNCHANGED m 0 l Can't find your answer ? Ask ! Publish Related resources SolvedUpgraded memory in Dell optiplex gx 620 and computer would not boot Forum SolvedDell Optiplex GX620 Memory Upgrade Forum SolvedMemory upgrade Dell Optiplex GX620 Forum "no audio device is not installed" error on dell optiplex gx620 Forum Dell Optiplex Gx620 no available boot device Forum Will my Dell Optiplex GX620 SFF work with these upgrades Forum RAM/Memory Issue - Dell Optiplex GX620 Forum Dell gx620 usb ports not working Forum SolvedAudio driver for Dell optiplex gx620 Win7 64 bit Forum Solvedgpu for Dell optiplex gx620 desktop Forum SolvedBest Possible Dell Optiplex GX620 SFF Upgrades? Forum Solvedmount the motherboard Dell optiplex GX620 in a GX280 Forum SolvedDell optiplex gx620 hard drive Forum SolvedHow to upgrade a Dell Optiplex GX620? Forum SolvedDell optiplex GX 620mt Forum SolvedWill a Sapphire Radeon x1900 xt fit into my Dell Optiplex GX620? Forum SolvedDell Optiplex GX620 SFF Motherboard Switch Help Forum SolvedDell Optiplex Gx620 sff Heatsink help Forum SolvedDell Optiplex GX620 SFF Pentium D heatsink upgrade? Forum Processor upgrade for Dell Optiplex GX620 Forum More resources Read discussions in other Windows XP categories Configuration Customization Drivers Security Video !