Firstly Welcome to the forum! I'm sure you will have a great time and hope you will stay a while.
There has been some investigation over this issue under Windows 7. It is suspected that it’s to do with an in correct registry key, this is the information that we have received from our support teams.
Just to make you aware we are not Microsoft accredited and are not responsible to any issues that arise from this information please create a back up before changing system files.
Error Code 31: This device is not working properly because Windows cannot load the drivers required for this device. (Code 31)
A workaround has been given to correct this registry key issue:
Before uninstalling and reinstalling the modem driver, you will need to add or modify your registry files.
For customers with internet access please download and double click the following registry file http://uploads.vodafone-ets.co.uk/Public/v...ror31RegKey.reg and begin the process below at step 6.
1. Go to start menu
2. Run ‘regedit’
3. Open this key
4. In this key, find the “Installer32” string.
5. If the Microsoft Registration Key is missing, the key has to be added manually.
6. Create a “string” value named “Installer32”, and set it to “mdminst.dll,ClassInstall32”
5. Save the ‘regedit’
6. Open the device manage
7. Find the modem with problem; update the modem driver again by reinstalling VMC 9.4.4
If you’re having any difficulties please come reply back to us