Drivers for Huawei E220 + windows 7  

Software compatibility

Microsoft is aware that users of Windows want to run older programs, though, so if you have a favourite program or game from yesteryear that won’t launch in Windows 7, there are a few tools that can help get it working.

Click Start, then All Programs and find the program’s shortcut in the list. Right-click on the shortcut, select properties then the Shortcut tab and click on the Open File Location button. The highlighted file in the window that opens will be the program’s executable file.

Next, right-click on it and select ‘Troubleshoot compatibility’. This will launch Windows 7’s compatibility wizard – follow the steps to see if Windows can automatically detect and fix any problems.

If that doesn’t work, try right-clicking on the file again. This time select Properties, followed by the Compatibility tab. Here you will find a number of manual compatibility options. The trick is to experiment with these settings until you get a satisfactory result. Under where it says ‘Compatibility mode’, put a tick in the box and then choose an appropriate version of Windows from the dropdown menu.

Windows 7 Compatibility: Software Programs & Hardware Devices: Find Updates, Drivers, & Downloads

Eusebio said:

It recognizes it. It installs the programm (Mobile connect), but then, it cannot connect (says the device is unavailable). The next time I plug-in, it installs the programm again, as if it had done nothing before.

I suppose I will try this troubleshoot compatibility thing...

yes try it i run a linksys phone for skype a wireless one in compatibility mode it works great its 4 years old!!

find the program right click on it and in the context menu click troubleshoot compatibility

i have the same dongle and i have used it on my pc ok on the 3mobile network in England, maybe its just not compatible because the software is different email/ring the mobile operator to ask if there software is designed to work with 7

And why do I have everytime a warning message on my computer, that it will change things on my harddisk ?!?
change what? a disc clean up? if the volume is dirty it will need a clean

Perform a SFC Scan

1. Click Start, click All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator. If you are prompted for an administrator password or for a confirmation, type the password, or click Allow

2. Type the following command, and then press ENTER:

sfc /scannow

A message will appear stating that 'The system scan will begin'. Be patient because the scan may take some time

3. If any files require a replace SFC will replace them. You may be asked to insert your Windows 7 DVD for this process to continue

4. If everything is okay you should, after the scan, see the following message "Windows resource protection did not find any integrity violations"

5. After the scan has completed, close the command prompt window, restart the computer and check.

more information here How to use the System File Checker tool to troubleshoot missing or corrupted system files on Windows Vista or on Windows 7