Thứ Ba, Tháng Hai 11, 2025
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Operation Could Not Be Completed” on Windows

It's frustrating when something as simple as setting up a default printer on Windows results in errors. Fortunately, solving the “Operation could not be completed (error 0x00000709)” error is not too difficult. Here's what you can do to resolve the error and continue printing.

1. Check for interference from other printers

If multiple printers are connected, Windows may sometimes display an “Operation could not be completed” error when trying to change the default printer. To avoid any interference, disconnect all other printers except the one you want to set as default. Then you won't get any errors.

2. Run the printer troubleshooter

Running Windows' built-in printer troubleshooter is an effective way to fix all types of printer-related errors, including this one. This tool will scan your system for any common problems and attempt to fix problems that may be causing the “Operation could not be completed” error.

To run the printer troubleshooter, follow the steps below:

  • Right click on the button Start and choose Settings.
  • Select tabs System from the left sidebar.
  • In the right pane, click Troubleshoot.
  • Click Other troubleshooters.
  • Locate Printer troubleshooter and click the button Run next to.
Run the printer troubleshooter in the Windows Settings app
Run the printer troubleshooter in the Windows Settings app

Wait for the troubleshooter to run and then try changing the default printer again.

3. Change printer options

By default, Windows manages the default printer for you. While this feature is useful, especially if you frequently connect to different printers, it can sometimes cause problems. Therefore, it is best to disable this feature.

To prevent Windows from managing default printers, follow these steps:

  • Press Win + I to open the Settings app.
  • Select tabs Bluetooth & devices from the left sidebar.
  • In the right pane, click Printers & scanners.
  • In section Printer preferencesturn off the switch next to it Allow Windows to manage my default printer.
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4. Rename the printer in Registry Editor

Error message 0x00000709 recommends that you set the correct printer name. In this next step, you will change the name manually in Registry Editor.

Warning: Although the tweak below is known to fix the problem, you need to be careful and follow the steps properly. Incorrect changes to registry files can cause serious problems.

Before continuing, make sure you create a backup of the relevant registry files. Once completed, follow these steps:

  • Press Win + S to open the search menu.
  • Enter Registry Editor in the search box and click Run as administrator.
  • In the Registry Editor's address bar, paste the following path and press Enter to quickly navigate to the Windows key:
Computer\HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows
  • Double-click the item Device in the right pane to edit.
  • In school Value datareplace the first entry with your printer name.
  • Click OK to save changes.
Edit DWORD value data in Registry Editor
Edit DWORD value data in Registry Editor

Make sure you restart your computer after completing the above steps. If renaming the registry key doesn't make a difference, apply the remaining fixes.

5. Change RPC connection settings

Once you've changed the printer name, make sure the printer is connected to the network. If the printer is connected but you still get errors, try modifying the RPC (Remote Procedure Call) connection settings in Group Policy Editor. This policy manages the protocol settings for RPC connections going to the remote print spooler.

Note: Local Group Policy Editor is only available on Windows Professional, Education, and Enterprise editions. If you are using the Home edition, this fix will not apply to you.

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To enable and change policy settings, follow these steps:

  • Open the search menu, enter Edit group policy and select the first result that appears.
  • Use the left pane to navigate to Computer Configuration > Administrative Templates > Printers.
  • Double-click the policy Configure RPC connection settings on the right.
  • Click options Enabled to activate policy.
  • Click the drop-down menu Protocol to use for outgoing RPC connections and choose RPC over named pipes.
  • Press Apply > OK.

Restart the computer for the changes to take effect. If the error persists even after performing this step, repeat the above steps and select RPC over TCP in the drop-down menu Protocol to use for outgoing RPC connections. If that doesn't work, you can turn authentication on or off from the drop-down menu Use authentication for outgoing RPC connections – try toggling this to any option that is not already selected.

6. Uninstall the problematic update

Do you get error 0x00000709 right after installing a Windows update? If so, an update might be causing the problem. In this case, uninstalling the problematic update will resolve the error and restore normal status.

There are several ways to uninstall Windows updates, but the easiest is through the Settings app. Here are the steps to do it:

  • Press Win + I to open the Settings app.
  • In the left bar, click Windows Update.
  • In the right pane, click Update history.
  • In section Related settingsclick Uninstall updates.
  • Find the most recent update by checking the installation date.
  • Click options Uninstall next to the update name and follow the on-screen prompts to complete the process.
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Uninstall Windows Update via Settings
Uninstall Windows Update via Settings

After removing the update, you will be able to change the default printer without any problems.

Not being able to set a default printer is really annoying. However, unless there is a problem with the printer, one of the steps listed above can help resolve the “Operation could not be completed (error 0x00000709)” issue on Windows and get you printing in no time.

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