I still use XP for devlopping & testing. :laugh: I got 4 desktops on XP Pro : 1 mainly dev system with Visual Studio 6 ( C++), 1 for office work with MS Office 2003, 1 for DBs ( mainly SQL Server 2008R2, Oracle, PostgreSQL, ...), 1 for backups. Everything works fine and I will not upgrade beacause all the stuff develop under XP works fine on all other versions and majority of my clients are still on Seven, some on 8 or 8.1 and a few on W10. I also got 2 laptops with W10 20H2 & Office 2016. They need a lot of maintenance. :sigh: I really prefer working on XP with slow processors & 2 GB RAM ;P I noticed also a bug on explorer on Seven and W10, sometimes explorer does not refresh the content of the list of files while deleting or copying, I have to refresh to be sure. XP is safe on this point :)