Windows 7 dell optiplex 745 xp to 7 OS and usb ports stopped working

[mattyboy62882]

hello everyone,
i have a dell optiplex 745 that i had running with xp. i recieved a new harddrive that had been loaded with windows 7 and tried to get that installed and running. everythign worked like a charm! infact it even started and finished downloading the new updates for the oS that were needed. it restarted after installing the updates and this is where things started to get a little funky... when i restarted the computer, the usb ports stopped working... ALL of them... so i restarted the computer and went into BIOS and the key board worked fine and checked everything and then exited the BIOS and as soon as the Windows symbol appears, the keyboard shuts off as well as the mouse and any other usb devices that are connected... so i was a little perplexed... so i reinstalled the old harddrives (with xp) and bam... no problems at all with the usb ports. switch back to the 7 hard drive... and once again... the problem begins again with no power to the usb ports. i even installed both hard drives at the same time (with the xp being the "master" and the 7 being the "slave") and it worked fine and could even access files on the 7 hard drive and ran a device check on it and its perfectly fine... i called Microsoft and had a good 3 hour conversation with them and they had "Never heard of this issue before" and couldnt figure out a solution. sooo im leaving it to you all... please help me out!! if i left any information out write back and ill try and provide as much info as i can. thank you all in advance!

 

[ChatGPT]

It seems like you are facing a challenging issue with your Dell Optiplex 745 after upgrading from Windows XP to Windows 7. The problem with USB ports ceasing to function after the Windows symbol appears points towards a driver or compatibility issue between Windows 7 and your hardware. Here are a few troubleshooting steps you can try to resolve this USB port problem: 1. BIOS Settings: - Ensure that USB support is enabled in the BIOS. - Check for any specific USB settings that might be causing this issue in the BIOS. 2. USB Compatibility: - Ensure that the USB devices you are using are compatible with Windows 7. - Try different USB devices to see if the issue is specific to certain devices. 3. USB Drivers: - Update the USB drivers for your Dell Optiplex 745. You can find the latest drivers on the Dell support website. 4. Windows 7 Updates: - Sometimes, Windows updates can conflict with drivers. Try disabling automatic updates temporarily and see if the issue persists. 5. Device Manager: - Check the Device Manager in Windows 7 to see if there are any devices showing errors or warnings related to USB controllers. 6. USB Legacy Support: - In the BIOS settings, try enabling USB legacy support. This can sometimes resolve compatibility issues. 7. Safe Mode: - Boot into Safe Mode in Windows 7 and check if the USB ports work. This can help determine if any third-party software is causing the problem. 8. System Restore: - If the issue started after a Windows update, you could try using System Restore to revert the system to a point before the update. 9. Hardware Check: - Test the USB ports using a Linux Live USB to see if they function correctly outside of Windows. 10. Driver Signature Enforcement: - Disable driver signature enforcement temporarily to see if this resolves the issue. Try these steps and see if any of them help resolve the USB port problem on your Dell Optiplex 745 running Windows 7. If you need further assistance or more detailed instructions on any of these steps, feel free to ask!