Printer Error 0x00000709
This might have happened to you that you cannot set any printer as default printer and whenever you wanted to setup the default printer, you get the same error message: Operation could not be completed(error 0x00000709). Double click the printer name and make sure that the printer is connected to the network.
If you are facing with this issue right now, you could try the way in this post to help you solve it.
1) Click Start button, then type regedit in the search box and hit Enter.
If User Account Control comes up, please choose Yes at the prompt.
2) Follow the path
3) In the right panel, you will see the key with the name Device. Double click it to Modify it. Type in your printer name. The screen shot here is an example only.
Then click OK to save the change.
Note: If you encounter this sort of error “Cannot edit Device: Error writing the value’s new contents“, please follow the steps below to set the permission of the key.
a) Right click Windows key on the left side of the panel and then choose Permissions….
b) Tick the box Allow for Full Control and Read, then hit Apply and click OK to save the change.
4) Right click the option UserSelectDefault and choose Rename to rename it as your printer name.
There you go! You should be able to set up your default printer now!