Hello dcluley‌, This bug is indeed fixed in our latest update released on Oct 13, 2015. Please go to Help > Check for Updates and apply the latest patch. You should be able to use Preview Pane without issues after applying the patch. 15.009.20069 Planned Update, October 13, 2015 — Acrobat and Adobe Reader Release Notes Let me know how it goes. Thank you, -ashu mittal ... View more

Thank you @Can of Creative, please keep us posted. -ashu ... View more

Hi @Can of Creative, Can you please go to About Acrobat Pro and let me know the version number that you see? Please also share the crash report as mentioned. Thanks, -ashu ... View more

Hi all, We released an Acrobat patch yesterday that includes several stability fixes including fixes for some of the crashers mentioned in this thread. Request you to please update to the latest version by going to Help > Check for Updates in your application. Release notes for the update: 15.009.20069 Planned Update, October 13, 2015 — Acrobat and Adobe Reader Release Notes Please try out the new version and let us know if you run into any issues. Thanks, -ashu ... View more

Hi SargentTownPlanning‌, Did you get a chance to try this out? Thanks, -ashu ... View more

Hi SargentTownPlanning‌, If you are on Windows, can you please disable Preview Pane and see if the crash goes away? Thanks, -ashu ... View more

Hi all, We have been working on investigating and fixing the crash reports mentioned in this thread. If you would like to be part of our prerelease program and help test-drive the next update, please send an email to asmittal@adobe.com with reference to this forum thread. We’d very much appreciate your help in resolving these issues. Thanks, Ashu Mittal Acrobat Team ... View more

Hello cdhooning‌, Instead of deleting these files, we would strongly recommend downloading the latest update of Adobe Acrobat Reader where the Right Hand Pane behavior has been made sticky - it will stay closed if you close it and so on. Please let us know if you face any issues with the same. Thanks, -ashu ... View more

Hi jacquelinetremblay‌, Thanks for the screenshots. We are trying to reproduce these issues internally and need some further information. We have sent you a private message with the information requests, could you please look into the same? Thanks for your patience, -ashu ... View more

Hi jacquelinetremblay‌, Could you please share a screenshot of the pop up you are seeing or even the message on the pop-up dialog? Thanks, -ashu ... View more

Hi Komoda, Could you please open Acrobat XI, go to Help > Check for Updates and make sure you are on the latest release (11.0.12). Pleas re-try and let me know if that works. Thanks, -ashu ... View more

Thanks for the update, glad to know it's resolved for you. -ashu ... View more

Hi klutzbear2‌, Could you please clear your browser cache and give it a try? Or try from a different browser? Thanks, -ashu ... View more

Very glad to hear that Epapr‌! Thanks, -ashu ... View more

Hi all, This issue has been fixed with our 11.0.12 update released on 14th, July 2015. 11.0.12 Planned update, July 14, 2015 — Acrobat and Adobe Reader Release Notes Thanks, -ashu ... View more

Hello Teilo, Sorry about the inconvenience caused. Quick update: Now when a Creative Cloud subscriber sees the update to Acrobat DC, they will get a warning that earlier versions will be uninstalled (shown below). The 'Learn More link' takes you to a page which tells the user how to reinstall Acrobat XI if you uninstall Acrobat DC and want to change your mind: https://helpx.adobe.com/creative-cloud/kb/acrobat-dc-uninstalls-acrobat-11.html Thank you, Ashu Mittal ... View more

Thanks very much for confirming. Best, -Ashu ... View more

Hi all, You can find the details of this issue here: http://helpx.adobe.com/acrobat/kb/runonce-key-created-every-user.html This page will be updated as soon as the fix is ready to be rolled out. Regards, -Ashu ... View more

Hi all, Thank you for reporting this issue with the latest Adobe Reader 11.0.10 update. Our engineering team has been able to identify the cause of this issue and are investigating a potential fix for the same. Please stay tuned for details of the resolution. Regards, Ashu Mittal Adobe Systems ... View more

Please visit the help doc here for some workarounds: http://helpx.adobe.com/acrobat/kb/vb-60-64-bit-issue-11007.html ... View more

Hi charliemanning, For the comment font size issue, could you please try the following workaround: Open Reader and bring up preferences by clicking CTRL+K Go to the "Commenting" preferences Change the default Font Size to something else and then back to your original preference (say from 10 to 12 and then back to 10) Now try opening the PDF and viewing the comments. Thanks, -Ashu ... View more

Hi all, Adobe is aware of this issue and investigating the same. We would like to thank all the users who helped us in investigating this issue. From preliminary investigations this appears to be a compatibility issue with Microsoft's "Program Compatibility Assistant" on Windows 8. Users facing this issue may use following steps to solve this issue (as posted by slselwyn): (Please take backup of system’s registry information before making following changes.) Launch Regedit. Click OK on the UAC dialog if asked. Navigate to the key [HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers] Under this key, find a value that matches the Acrobat.exe installation location on your machine. For example:           For Acrobat 11.0.03 it could be: "C:\Program Files (x86)\Adobe\Acrobat 11.0\Acrobat\Acrobat.exe"           For 10.1.7 it could be: "C:\Program Files (x86)\Adobe\Acrobat 10.0\Acrobat\Acrobat.exe"     4. Delete just this value (for Acrobat.exe) by right-clicking on the value, and select delete. Thanks, Ashu ... View more

Hi all, There was a temporary glitch with our servers that has now been resolved. Please re-launch Acrobat and let us know if you still face this issue. Thanks for your patience, -Ashu ... View more