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Pro-100 not installing on Windows 11


I have not been able to add my Pro-100 printer to my new Windows 11 computer.  Using the included disk I have installed the driver but it cannot be found.  I try to add the printer manually and the system finds it, but when it gets to the "Type a printer name" window and I click Next, I get the message "Unable to install printer.  Cannot complete this function."  


I have no idea where to go from here.  According to this printer should be supported by Windows 11, so I have no idea what to do.


Any ideas?


Thanks -




Product Expert
Product Expert

Hi GLSmyth,

Canon's Technical Support Representatives are available via phone or chat. To contact a Technical Support Representative, please use the link below:

Once an account is created, you will be able to speak or chat with a Technical Support Representative.

In regards to the issue that you are experiencing, please have you PRO-100 powered, USB cable connected and then follow these steps:

1.  Click the Search icon at the bottom of your screen and type DEVICE MANAGER in the search box. 

2.  Click on "Device Manager - Control Panel" in the results above.

3.  In the list that appears, please right click any PRO-100's that appear and left click on Uninstall or Remove.  Repeat until all PRO-100's are removed.

 4.  Close Device Manager.

5.  Please disconnect the USB cable from the back of your PIXMA PRO-100.

6. Press the Windows key on your keyboard and the letter R, then let both go.

7. In the Run window, please type CONTROL PANEL and click OK.

8. Click on View devices and printers (or Devices and printers, depending on your view).

9. Right click the Canon PRO-100 series and left click on Remove device. Repeat until all PRO-100's are removed.

10.  Click Close to close that window.

11.  In the upper left corner, click on Control Panel (or the Back button).

12.  In Control Panel, click on Uninstall a program (or Programs and features, depending on your view).

13. Click once on Canon PRO-100 series Driver and then click Uninstall at the top.

14. Follow the on screen prompts to uninstall the driver. When you click Complete, the driver is uninstalled.

15. Once done, please reboot your computer.

When your computer restarts, we will reinstall:

1. Please use the following link:

2. Click the Select button next to "PRO-100 series Printer Driver Ver.1.07 (Windows)".

3. Click the Download button. The drivers will download.

4. Once the download is complete, open your downloads folder. To access this, press CTRL and J, then let both go.

5. Double click "p86l-win-pro_100-1_07-ea32_2.exe" to begin the installation.

6. Follow the on screen prompts to reinstall, only reconnecting the USB cable when prompted during the installation.

Once the installation has completed, please attempt to print.

Did this answer your question? Please click the Accept as Solution button so that others may find the answer as well.

View solution in original post


When I go to Device Manager, select Printers, then CanonPro-100 series, right-click and Update Driver, then Search automatically for drivers, it says, "Windows found drivers for your device but encountered an error while attempting to install them. Cannot complete this function."

I have no idea what to do from here.

Okay ... I guess I'm out of luck.

I used to get that error message when I tried to update my GPU driver..

Error stopped when I booted into Safe Mode and then ran the installer. Maybe it would work for the printer. 

John Hoffman
Conway, NH

1D X Mark III, Many lenses, Pixma PRO-100, Pixma TR8620a, LR Classic


Have you tried downloading and installing gthis updated driver? It says W11 has been added as a supported OS.


Screenshot 2021-11-19 095103.jpg

John Hoffman
Conway, NH

1D X Mark III, Many lenses, Pixma PRO-100, Pixma TR8620a, LR Classic

Yes, I downloaded and updated the driver.  When I look at the port it tells me that it sees the printer, so that's fine (I just use a cable because there always seems to be a problem trying to use wireless).  However, when I install the driver it goes through all of the steps then tells me that the installation failed.  No idea why or what to do about it.  I did contact HP for help but because it is not an HP printer they are not willing to help me without paying $50 for the assistance.  Large companies no longer need customers that encounter problems, which is why all of this is so frustrating.

Maybe try over on DPReview; they have a PC forum and a Printer forum. Possibly a larger base as well.

John Hoffman
Conway, NH

1D X Mark III, Many lenses, Pixma PRO-100, Pixma TR8620a, LR Classic

Thanks, I may try there.  I guess I was just hoping that I would find help for my Canon printer driver on Canon's official forum.



This is a user supported forum, not a Canon factory support website. There are going to be times when no users will have a particular issue and thus won't be able to offer a help.

John Hoffman
Conway, NH

1D X Mark III, Many lenses, Pixma PRO-100, Pixma TR8620a, LR Classic

Gotcha, I guess I was assuming that a forum on would have someone from Canon who would care about a problem with one of their printers on a current operating system.