General steps

To ensure a successful install, make sure that:

  • You are using the latest installer for Power Automate Desktop

  • You have admin privileges: the installer will ask you for admin privileges and fail if you select no

  • You have restarted you machine: some Windows changes require a reboot to take effect and might be blocking your install

  • Your are running an up to date version of a supported Windows OS: Windows 10 (Home, Pro or Enterprise) or Windows Server 2016 or greater

Known install issues and workarounds

UIFlowService startup: Unable to load DLL 'uiflowsclient.dll'

The install fails because the UIFlowService Windows service failed to start, and the event viewer logs show that the reason it could not start is "System.DllNotFound Exception: Unable to load DLL 'uiflowsclient.dll'"

Workaround: Uninstall Microsoft Visual C++ 2015-2019 Redistributable

Go to Settings > Apps > Apps & features and uninstall it, then re-install Power Automate Desktop. The Power Automate Desktop installer will reinstall the C++ redistributable.Uninstall Visual C++

Gathering diagnostic information

To best understand and fix your install, the following data can help:

  • Installer logs: These logs can be found in the %temp% folder of the installing user (type '%temp%' in the address bar of the file explorer and press enter). There are two files to get there with the following formats: Power_Automate_Desktop_*.log and Power_Automate_Desktop_*_*_MicrosoftFlowRPA.log, you can order the files by "Date modified" to make finding them easier.  PAD installer logs  The Power_Automate_Desktop_*.log file is linked on the installer's failure endscreen, and will contain the general reason why the install failed. The Power_Automate_Desktop_*_*_MicrosoftFlowRPA.log file has more detailed logs about the install.

  • Event viewer logs: These logs will be valuable when a Windows service fails to start. Open the Windows event viewer, navigate to Windows Logs > Application, and look for errors Event viewer logs

  • Program data logs: There are the logs of the components we install on your machine. You can find them at the following path: %programdata%\Microsoft\Power Automate Desktop\Logs These logs will require admin privileges to be copied to another folder. You will need to copy them before being able to open them, the contents of this folder are write-only.

If you need to contact support, please send these 4 items as a zip file with your ticket:

  1. Power_Automate_Desktop_*.log

  2. Power_Automate_Desktop_*_*_MicrosoftFlowRPA.log

  3. Event viewer logs:

    • select Filter current logs to only catch the right logs (e.g. the last hour)

    • right-click on the selected errors

    • select Save Filtered Log File as and save as evtx file

  4. %programdata%\Microsoft\Power Automate Desktop\Logs files

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