For photographers-Lightroom classic and the recent Win10 update

Microsoft have done it again. About 18 months ago a windows update created problems with app folder access permissions. At the time the win 10 update coincided with an Adobe LR classic update which also upgraded catalogues confusing the issue. Then and now if you are affected you will be unable to save files from affected apps which include Office apps (really MS!). With Lightroom it's even more insidious, you suddenly won't be able to load a catalogue. Also affected is the apps ability to create previews. Other Adobe apps can also be affected, mainly the ability to save. So if you have been affected don't panic your catalogues aren't corrupt you just need to manually set permissions via the procedure below:
1. Select Start > Settings > Update & Security > Windows Security > Virus & threat protection.
2. Under Virus & threat protection settings, select Manage settings.
3. Under Controlled folder access, select Manage Controlled folder access.
4. Select Allow an app through Controlled folder access
5. Delete the lightroom (classic) entry
6. Select Add an allowed app
7. Add Lightroom classic. Note you may be able to do this quickly by selecting Recently blocked apps.