Had a server running Win Svr 2003 Std R2 SP2 that did not come back gracefully from a power issue. was able to boot svr using Last known Good Config and was able to login to the unit locally using Kybd and mouse. Symantec AV was requesting a reboot for remediation of items it detected and there were 2 Windows Updates for .Net Framework. I applied those updates and rebooted server. Keyboard & mouse respond fine in BIOS and in any POST and controller card firmwares. But when it gets to Windows login, no response. reseated kybd and mouse in same and different usb ports. tried different known good kybd and mouse. Read some articles that talked about BIOS updates for this issue so updated BIOS and intel chipset. Also applied some registry entries to ensure kybd and mouse enabled in Safe Mode (unit also doesn't respond in safe mode either). Server operates perfectly remotely (Radmin, RDC, LogMein) and a client server app works fine, also when kybd and mouse unplugged and replugged, device manager responds on the server. Also uninstalled keyboard, mouse and HID devices in Device Manager and rebooted with same results. Any ideas?

Hi, Please try to uninstall the "Universal Serial Bus controllers" in Device Manager after uninstalling the mouse and the keyboard to check the result. If it does not work, please also perform the following steps to troubleshoot this issue: Step 1. Show hidden folders ========================= 1. Click the Start button, Click "Computer" -> "Organize" -> "Folder and Search Options". 2. Click the "View" tab. Under "Hidden files and folders", click "Show hidden files and folders". 3. To display other hidden files, uncheck the "Hide protected operating system files (Recommended)" check box. Step 2. Rename the USB inf relate files ========================= 1. Click the Start Button, type "%windir%\inf" (without quotation marks) in the Start Search box, and press Enter. 2. Please locate "Infcache.1" file, right click on it, click Properties, select Security tab, click the current User Account name, click Edit, check Full Control checkbox as Allow, then all the checkbox will be checked as Allow, click OK, click OK. 3. Right click the Infcache.1, select Rename, please type infcache.1-bak in the text box, press Enter. Then Infcache.1 would be renamed to infcache.1-bak. 4. Please select all the files beginning with "oem", for example: oem0 and oem.PNF. 5. Press Delete to delete them 6. Please restart the computer. If the issue persists, please also try the following steps: Modify the Registry ===================== 1. Click the Start Button, type regedit in the "Run" text box and then press ENTER. 2. Navigate to the following key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{36FC9E60-C465-11CF-8056-444553540000} 3. Right click the {36FC9E60-C465-11CF-8056-444553540000} entry, choose "Export", select Desktop in the Save in box and type backup in File Name. Click Save. Please Note: The backup file is on the Desktop and named backup.reg. We can simply restore the registry by double-clicking the backup.reg file. 4. Highlight this key ({36FC9E60-C465-11CF-8056-444553540000} ), on the right pane, and then check if Upperfilters and Lowerfilters value are present. If so, please right click on the values and select "Delete" to remove them. 5. Restart the computer. Regards,Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Arthur, Could you give me a little more clarification on exactly what you mean by Upperfilters and Lowerfilters? Sorry I seem dense, I am just not familiar with those terms. Regards,

Hi, Upper filters are drivers that handles/filters device access-requests from application prior passing them to the main device driver. The lower filters are drivers that handles/filters device access-requests from main device driver prior passing them to kernel driver. For more information, please also refer to the following Microsoft KB article: A computer that is running Windows XP cannot detect a USB flash drive, an Apple iPod, or an external hard disk drive http://support.microsoft.com/kb/925196 Regards,Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

okay I tried all of the above and issue persists.