After installing Genie Timeline (GTL) or Genie Backup Manager (GBM), you receive the following error in the Event Viewer:

“Error 1935. An error occurred during the installation of assembly ‘Microsoft.VC80.ATL, type=”win32″, version=”8.0.50727.4053″, publicKeyToken=”1fc8b3b9a1e18e3b”, processorArchitecture=”x86″‘. Please refer to Help and Support for more information”



A 1935 error is one of the most common problems that can prevent a user from being able to install any application that uses the Microsoft Windows Installer MSIAssembly and MSIAssemblyName tables to install assemblies. In general, this error means that Microsoft Windows Installer encountered an error while trying to install assemblies to the Global Assembly Cache (GAC) or the Win32 GAC (WinSxS). This error is considered fatal and causes setup to fail and initiate rollback.

The error can be caused by a variety of reasons:

  • Another application deletes the file while our application tries to open this file.
  • Some driver in the file system stack intercepts a CreateFile/ReadFile etc and translates the error code to “file not found” etc.



Solution 1: Clear the transaction log

If you receive a 1935 error, the Windows file system transaction log has become corrupted. The transaction log is used by the Windows file system to recover when a file error occurs. To correct this install error, you need to clear the log as follows:

  1. From the Start menu, type cmd and you will see Command Prompt listed as the main result. Right-click that result and choose Run as administrator.
  2. In the command prompt, type the following command and hit Enter:
    fsutil resource setautoreset true C:\

    This assumes that C: is the drive in which Windows is installed. If it is installed on another drive like D:, please change the drive letter appropriately.

  3. Restart your computer.
  4. Install GTL or GBM again.


Solution 2: Disable antispyware and antivirus software or remove adware or spyware from your computer and then install GTL or GBM

  1. Disable the following applications or types of applications, following any instructions provided by such software:
    • Disable Lavasoft Ad-Watch, Ad-Aware, or similar detection software before installation.
    • Disable WebRoot Spy Sweeper.
  2. Install GBM or GTL again.


Solution 3: Remove adware and then install GBM or GTL

Error 1935 can be caused by a certain type of adware running on the system.

  1. Start the Task Manager. (Alt + Ctrl + Delete)
  2. Look for a process named wtoolsa.exe. If this process is running, then you will need to remove this adware.
  3. Install GBM or GTL again.


Solution 4: Perform an installation repair of Windows

Your system might have some corruption that has gone undetected.

  1. Re-install or repair your Windows.
  2. Install GTL or GBM again.


Applies to: All GBM and GTL versions.