After upgrading to Win11, Pro 9 unstable

[JimSolleder]

Hello,

I recently upgraded my Dell laptop from Win10 to Win11. Ever since, Acrobat Pro 9 (purchased DVD) has become unstable.  I will be working for about a half hour or so with 3-4 pdf documents open when Pro will freeze for 30-40 seconds, spinning blue circle of death and then it closes.  Sometimes it saves most of my work, sometimes not. Also, when I am clicking links inside a document, it will flash a progress bar in the lower right corner titled "Sorting System Fonts".  Even rthough this is blinking fast,  this slows the progress of the link and I have to click it again. Next page, it does it again.  I have gone into Preferences and unchecked the "Use local fonts', but these two errors are not only very annoying, but they are slowing down my production.  Please Help!

[try67]

This is not surprising, since Acrobat 9 is a very old version, not compatible with any current OS.

Your best course of action is to make sure that it's updated to the latest available version (9.5.5, I believe) and run it in Compatibility Mode with an earlier OS, like Windows 7.

[JimSolleder]

Thank you for taking the time to answer.  My apologies for not replying sooner.

As I am dead set against ANY subscription for software, I took a few days and found a brand-new, in the box copy of Acrobat Pro 2015 DC on eBay. I purchased it and loaded it, and after using it for 3-4 days I can report that it is MUCH more stable than my old Version 9.  A few features I am not fond of, but I can work with them.

One thing I have noted is that it appears to be unable to open browsers.  When I click on a URL in a document, I get this popup:

I believe this is a plug-in issue. I will be researching this more.

Again, I apreciate your help and advice.

Jim

[try67]

If this is the only issue, count your blessings. Also, I hope you got a legit copy. Were you able to register it with Adobe?