<maviedesysadmin>
"Usage Instructions

Navigate to the following MS Fix-It tool Website: http://support.microsoft.com/mats/Program_Install_and_Uninstall
Either select Run Now or 'Advanced-Download to run on a different or disconnected computer' then Download (For use on computers without internet), you will be prompted to download the Fix-It tools to a folder location.
Note: If you receive an error running the tool, ensure that you have .NET Framework 2.0 or 3.5 installed. This tool will install Windows PowerShell as part of the process.
Select ‘Detect problems and apply the fixes for me (Recommended)’.
Click ‘Uninstalling’.
On the 'Select the program you want to uninstall' dialogue window, select the Sophos endpoint package that is failing to upgrade/uninstall.
Note: If you cannot see the problem Sophos application on the list, You will be asked to provide the product code for the Sophos application. The location of the product keys can be found in either of the below locations: 

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{PRODUCT GUID}
    HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{PRODUCT GUID}

Here is a list of the common product codes:
    Auto-Update 3.x: {D924231F-D02D-4E0B-B511-CC4A0E3ED547}
    Sophos Anti-Virus 10.3.x: {D929B3B5-56C6-46CC-B3A3-A1A784CBB8E4}
    Sophos Client Firewall 2.9.4: {A805FB2A-A844-4CBA-8088-CA64087D59E1}
    Sophos Remote Management 3.2: {FED1005D-CBC8-45D5-A288-FFC7BB304121}
Select 'Yes, try uninstall'.
After an attempt to uninstall, if a failure occurs, other fixes will be applied, you can click 'View report details' in the bottom left for further information. Click Next.
The last dialogue will ask for feedback, select an option and click Next, then Close.
At this point you should now be able to reinstall Sophos (Services, drivers, registry and files will all still be present at this point), if a previous upgrade failed, re-protect from the Sophos Console should now be possible. If the intention is to remove Sophos from the computer, after the reinstall, uninstall as normal from Control Panel.

"

Via le regedit c'est plus rapide.

Comment perdre du temps.
<maviedesysadmin/>