The recent windows 11 update, especially, 24H2 and 25H2 has a known bug where the “microsoft print to pdf” printer driver stopped working, which as a result affected the print preview and creation pdf documents from within mSupply.

mSupply reports and print form could no longer be generated due to `Microsoft Print To PDF` not functioning as before.

1. Windows 11 24H2 and 25H2
2. mSupply Version prior to v8.08.18

Below is the sample Image of the Issue:

• Upgrade the mSupply to the version v8.08.18 or later
• This version allows the use of printer preview.
• Remove the `Microsoft to PDF` driver

Method 1 : Convert the `Microsoft Print to PDF` to a “Microsoft XPS Class Driver”

1. Go to Printer and scanner setting
2. Click on Microsoft Print to PDF → Go to Printer Properties → Advances
3. Click on the `Drivers` list and choose Microsoft XPS Class Driver
   1. - Or click on the `New Driver…` button and Choose Microsoft → Microsoft XPS Class Driver
4. Click Apply and Ok
5. See that the print driver name changes to “Microsoft XPS Class Driver”, the `Microsoft Print to PDF` driver now no longer exist !
6. Test mSupply to see that the print preview and PDF creation works.

Check if “Microsoft XPS Class Driver” exists (Settings → Bluetooth & Scanner → Printer & Scanner). If not,

Method 2 : Manual add via Printer Setting

1. Go to Settings → Bluetooth & Scanner → Printers & Scanners
2. Click Add Device and Add a new device manually
3. select Add a local printer or network printer with manual setting
4. Choose Use an Existing port (LPT1: Printer Port)
5. Choose Microsoft → Microsoft XPS Class Driver

Method 3 : Add Via Optional Feature

1. Press windows+R and type - optionalfeatures - and enter.
2. Look for “Microsoft XPS Class Driver” in the list
3. Check Ok
4. Make sure “Microsoft Print to PDF” is un-checked
5. Restart your PC.