Adobe Acrobat XI Standard閃退

Acrobat XI is an old and unsupported version, and is getting less and less compatible with Windows 10 with each new update of the latter. To increase the chances of it to work properly make sure you have all updates installed (up to 11.0.23) and run it in Compatibility Mode with an earlier OS, like Windows 7.

Updates are available here:
ftp://ftp.adobe.com/pub/adobe/acrobat/win/11.x/
Replace "win" with "mac" if you have the Mac version.
You must use a dedicated FTP client to open the link, it won't work in most browsers.