I have a Dell XPS M1530 laptop. Recently, I’ve changed the settings of my Windows Vista in order to Windows 7. At the beginning everything was perfect, my USB mouse worked properly for the days. But the entire USB ports stopped working as soon as I input a memory stick. These nevertheless produce energy; however the Windows does not identify any kind of USB device in any way right now. Do you have some answer for this?

Error message from Notebook System Software Installer Information
"Error 1327. Invalid Drive: G:\"
- Login or Signup Now to post comments

To resolve that issue, I will suggest that you try the following workaround.
After that try plugging in the mouse and see if it will be detected.
-Thompson Locker
Hello Sherry
I would like to tell you to uninstall the current drivers which you have in the system entirely.After doing so you have to restart the system and reinstall the drivers again which you got with the laptop.After reinstalling the drivers you may have to restart the system again if it asks for the restart.After this you will be able to use the USB as you did earlier.But if this does not help then you should install the windows again.But this is the last option you can perform the other options before coming to this one so please ensure that you have tried all the other options which i have told you before switching to this option which is your last option.This final step would definitely help you.
thank you
Gaurav3282