I have done every upgrade for Windows 10. I'm using Lightroom CC 2015.2.1 (1046594). Have been working with Lightroom from the very first edition.
After the latest upgrade for Lightroom CC it start to work much much more slowly. To do an export few weeks back could take few minutes, now take several hours. I have more than 45.000 pictures.
I have 24 GB memory, several TB harddisks.
What to do? Please help me!