Change Default PDF Program for Internet Explorer
Changing the default program for PDFs to stop the PDF crashing issue.
Download Adobe Acrobat Reader DC from https://get2.adobe.com/reader/
If you have it, skip this step
Once it downloads, install it
In Internet Explorer, Select Internet Options
Under the Programs tab, click the ‘Set Programs’ button
Scroll down and click on the text 'Choose default apps by file type’
Scroll down to find the .pdf file type, and change the program to Adobe Acrobat Reader DC
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