Installation problem "Error writing to file dsofile.dll"

Hello, I've bought Trados Studio 2015 and just downloaded the installation program.
I have Trados Studio 2011 installed and want to upgrade it.
I start SDLTradosStudio2015_SR1_4961.exe but at the end, when installation shows "Installing SDL Trados Studio 2015" it ends with an error "Error writing to file C:\Program Files (x86)\Common Files\...\dsofile.dll".
Any suggestion how to solve the problem?
Thank you!
Marcel

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  • Marcel

    Let me first clarify something: the installer " SDLTradosStudio2015_SR1_4961.exe" is NOT an update to your installed Studio 2011, but a full installer for Studio 2015 SR1. You cannot update Studio to a later major version, a major version change always requires a full separate install of the new version and does not affect your existing version.
    However, this should install without problems in parallel to your existing Studio 2011.
    Did you try to run the installer with admin rights?
    Also make sure, Studio 2011 is not running when you run the installer.
    If it still does not work, I suggest, you first uninstall Studio 2011 and then try again to install Studio 2015.

    Walter.
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  • Marcel

    Let me first clarify something: the installer " SDLTradosStudio2015_SR1_4961.exe" is NOT an update to your installed Studio 2011, but a full installer for Studio 2015 SR1. You cannot update Studio to a later major version, a major version change always requires a full separate install of the new version and does not affect your existing version.
    However, this should install without problems in parallel to your existing Studio 2011.
    Did you try to run the installer with admin rights?
    Also make sure, Studio 2011 is not running when you run the installer.
    If it still does not work, I suggest, you first uninstall Studio 2011 and then try again to install Studio 2015.

    Walter.
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