problem with backup exec 12.5 and windows server 2019
back in the day, i was a veritas reseller. i've had an nfr copy of backup exec 12.5 that i've been using since around 2010. it's worked fine through windows server 2019, performing upgrade over upgra...
Its nice to see 12.5 working with newer OS release. Take a look at the latest release which is supported on the new OS https://www.veritas.com/support/en_US/article.100040087
Regarding the issue you face with BE , see if you can uninstall these KB and check if it works
https://www.veritas.com/support/en_US/article.100045500
windows 2019 - KB4486153
windows 2016 - KB4486129
