Set Adobe Acrobat as Default PDF Viewer in Windows 10.
Step 1: Locate a PDF File
Find any PDF file on your computer (for example, one saved on the Desktop). Note that the icon is missing the Adobe Acrobat logo. This tells us that this PDF will open in Microsoft Edge by default. To correct this behavior, we need to set Adobe Acrobat to be our default application for PDF files.

Step 2: Right-Click the PDF
Right-click the PDF file. In the context menu, hover over Open with. A side panel will appear. In that side panel select Choose another app at the bottom of the list

Step 4: Select Adobe Acrobat If Listed
In the pop-up window:
1. Select Adobe Acrobat from the list.
2. Check the box Always use this app to open .pdf files.
3. Click OK.

Step 5: If Adobe Acrobat Is Not Listed
If Adobe Acrobat is not listed, please open a ticket by emailing helpdesk@tulsatech.edu and a technician will reach out to you as soon as possible to assist.
Step 6: Confirm
To confirm, you will notice that the PDF file icons are now showing the Acrobat logo. The PDF will now open in Adobe Acrobat, and all future PDFs will use Adobe Acrobat by default.