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I go to Default Programs, then choose &quot;Set defaults by app&quot;<br />
<br />
Click on that app...Adobe Reader then choose &quot;Set this program as default&quot;.<br />
<br />
That seems to stick best for me.
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I go to Default Programs, then choose "Set defaults by app"

Click on that app...Adobe Reader then choose "Set this program as default".

That seems to stick best for me.

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It sometimes changes back but not too often.
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It sometimes changes back but not too often.

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Hi,<br />
<br />
You must try these steps:<br />
<br />
1. Select the PDF file and <b>right click</b> on PDF file<br />
2. click on <b>Open With</b> and click on <b>Choose another app</b><br />
3. A dialog box will display on screen, select <b>Adobe Acrobat</b> or <b>Adobe Reader</b><br />
4. And check on <b>Always use this app to open .pdf files</b><br />
<a href="https://filedb.experts-exchange.com/incoming/2017/05_w21/1164279/6.png" target="_blank" title="6.png (22 KB)"><img alt="6.png" class="file-block lazyload" style="max-width: 253px;" data-src="https://filedb.experts-exchange.com/incoming/2017/05_w21/1164279/6.png" /></a>5. Click <b>OK</b><br />
<br />
Thanks &amp;&nbsp;Regards<br />
Edwin Hoffer
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Hi,

You must try these steps:

1. Select the PDF file and right click on PDF file
2. click on Open With and click on Choose another app
3. A dialog box will display on screen, select Adobe Acrobat or Adobe Reader
4. And check on Always use this app to open .pdf files
6.pnghttps://filedb.experts-exchange.com/incoming/2017/05_w21/1164279/6.png5. Click OK

Thanks & Regards
Edwin Hoffer

6.png

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You are very welcome and I was pleased to assist you.
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You are very welcome and I was pleased to assist you.

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I have installed Adobe Reader and configured as a default PDF program but every time I've open a PDF file, it changes Microsoft Edge the default PDF program; I have changed this more than 20 time. How can I get to set Adobe Reader definitely &nbsp;as a default program?
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I have installed Adobe Reader and configured as a default PDF program but every time I've open a PDF file, it changes Microsoft Edge the default PDF program; I have changed this more than 20 time. How can I get to set Adobe Reader definitely  as a default program?

Windows changes constantly Edge as PDF default program

Adobe Acrobat is a family of application software and Web services developed by Adobe Systems to view, create, manipulate, print and manage files in Portable Document Format (PDF). The family comprises Acrobat Reader (formerly Adobe Reader), Acrobat (formerly Acrobat Exchange) and Acrobat.com. The commercial proprietary Acrobat, available for Microsoft Windows and OS X only, can also create, edit, convert, digitally sign, encrypt, export and publish PDF files.

Adobe Acrobat

This topic area includes legacy versions of Windows prior to Windows 2000: Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions including Windows Mobile.