Question USB ports don't function on Windows 7, yet they operate correctly with Windows 10?
Question USB ports don't function on Windows 7, yet they operate correctly with Windows 10?
Laptop model:
HP Envy dm4 Beats Studio
First of all, sorry for my poor English.
As the title indicates, the twin USB ports (on the left) aren't functioning with Win7. They only charge and won't transfer data to or from any USB devices I've connected (HP, Sandisk, Kingston, Samsung, TDK, and even Chinese ones).
I've tested all available drivers so far; from Intel, HP...
The OS (Win7 Home Premium x64) is fully updated, and it's ready for SP1.
The USB port near the DVD drive works perfectly.
I've attempted to uninstall or disable the USB devices in Device Manager, even updated drivers from there... but no success. The only result I've gotten is that the ports indicate the connected USB devices aren't recognized, and charging works without issues.
The most puzzling part was when, in a last-ditch effort (due to difficulties with the laptop's switchable GPUs and AMD drivers), I decided to install Windows 10 Enterprise x64. Even though the GPUs refused, both USB slots functioned perfectly.
I've gone back to using Win7 (I dislike it for its intrusive behavior) just to see if both slots are still failing.
I'm aware it might come down to drivers, but after trying all existing options (from Windows XP through 8 and Vista), I'm unsure what to do next.
I've also tried a method involving regedit and disabling the device, but I'm not sure if that helped.
Hope you can assist me. Thanks in advance 😊
Btw: the only solution to get the GPU working seems to be avoiding the RADEON 7400 and sticking with the HD3000, installing the latest drivers for Windows 8 or Vista.
It's highly probable the USB data connections could have been affected, while the power supply lines remain intact, which might explain why you can turn off power to the ports but nothing gets recognized. You might want to take apart the laptop and check the USB area for any signs of damage. If nothing is found, focus on narrowing down the issue on your board. Drivers seem to be the likely culprit, but after testing all available versions so far (from Windows XP through Vista and 8), what options do you have? An OS reinstall would likely fix it. The safest choice is to take the laptop to a repair shop that deals with laptop motherboards, as they can pinpoint any short circuits. Also, it appears the GPU won't work unless you switch from RADEON 7400 to HD3000 and apply the latest drivers for Windows 8 or Vista. It seems your chipset might be faulty or the discrete GPU has stopped functioning.
The situation is clear, with Win10 functioning properly on both slots (data and energy transfer). The HD7400 performed well, but Win10 crashes when switching between it and the HD3000. The AMD drivers for Windows 7 never worked, and locating a fix for the HD3000 required several hours of effort and at least ten crash-reinstall attempts.