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Windows 10 Compatibility with TDO


Windows 10 is officially released on July 29th 2015. 

We have tested TDO in the Windows 10 environment and it works fine. Workstations running Windows 10 will still need to follow our TDO Best Practices in order to function most efficiently. 

Also, in just the same way that User Account Controls must be turned off on older version of Windows, it will be necessary for your IT to disable UAC in the registry in order to install TDO. For information on how to do that, click here

However, we do not suggest to update to Windows 10 until your IT professional has thoroughly checked the compatibility of all your other peripheral devices, drivers, and software programs with Windows 10. While TDO is compatible with Windows 10, there is the possibility that drivers for other devices might not be. If other manufacturers do not have the drivers for their devices for Windows 10 there will be no way for it will not work until one is released. 

Important Notes

  • As mentioned above, please make sure to Disable UAC in Windows Registry in order to newly install TDO on a new Windows 10 computer. (UAC must be disabled while installing). If you are updating from Windows 7 or 8.1, you will likely be able to avoid this step as TDO will remain installed depending on the option you select when upgrading.
  • Also, prior to disabling UAC, we strongly suggest having your IT install a browser other than Microsoft Edge (such as Google Chrome or Firefox) as disabling UAC will prevent Microsoft Edge from opening.
  • Verify that all your other devices will work with Windows 10 prior to upgrading
  • Only TDO Version 11.336c and higher have been tested in the Windows 10 environment. Older versions of TDO should likely function with Windows 10, but we would not suggest updating your operating system until you are running the most recent version of TDO.
Follow the discretion of your IT

Please have IT verify all the items mentioned above prior to moving to Windows 10 as TDO Technical Support will not be able to help troubleshoot errors related to failing to follow these instructions. Also the steps below for adjusting the registry should only be handled by someone familiar with making changes to the registry.

 Detailed Instructions

In order for the default Windows apps to function (Calculator, Microsoft Edge, etc) UAC must be enabled but there is a dilemma in that TDO typically requires UAC to be disabled. Here are the best steps to allow UAC to be enabled and still have TDO to function with Windows 10

Install TDO with UAC disabled in registry How to disable UAC in Windows Registry 

After TDO is unlocked, a D-Word key must be created in order for TDO to function properly when UAC is reenabled: 

Location: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System

Created DWORD key:

Assign the key value:

After this is done, you can reenable UAC from the Windows Control panel. 


And now your Metro apps in Windows 10 should work with UAC enabled.

Compatibility Mode

We have noticed that when UAC is reenabled, some applications have difficulty opening. We have found that a simple way of resolving this issues is to ensure that all your frequently used Programs are set to "Run as an Administrator"

We suggest following these steps for the TDO Application on Desktop as well as and of the other TDO Applications you may use (These applications include Autofix and TDO QB Sync and are located in C:\Program Files (x86)\TDOffice\Utilities)

Find the Program you wish to Run as and Adminsitrator. Right Click and select Properties

Then browse to Compatibility tab and make sure "Run this Program as an Administrator" is checked.

Click Apply.


We have seen in a handful of cases that opening applications in Windows 10 with UAC enabled might not function correctly. To resolve this, check with your IT that the application is set to Run as an Administrator. 

If you have rolled back to Windows 7 from Windows 10

Please note, if you select to roll back your Windows 10 installation there is a high probability that the process will corrupt your Windows scheduled task library which will impact your TDO Backup as well as other windows processes. You will need to work with your IT professional to research and resolve this in the way that best works for your individual practice.

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