Allow Control-Alt-Delete in windows VM:
Passing Ctrl+Alt+Delete to the Windows HVM:
Qubes menu → System Tools → Keyboard → “Application Shortcuts” tab → Select the line “xflock4” – “Ctrl+Alt+Delete” → Click the “Remove” button
Select Qubes menu → Qubes VM Manager → Right click on Windows VM → VM Settings → On the “Basic” tab, tick the “Run in debug mode” checkbox → Click the “OK” button → Start Windows VM
When starting windows, 2 windows are present – press ctrl-alt-del in the 1st one and the other (with the desktop) responds to it. log in with your local account, start VPN, switch user, log in with your domain account.