Windows 11 Explorer crashes on right mouse click on file or folder in network drive

Since upgrading from Windows 10 to Windows 11 I was experiencing frequent crashes of Windows Explorer when performing a right mouse click on files or folders located in a network drive location.

How-I-fixed-it:

I did two thing which finally fixed it for me. 

I found them both in the Microsoft Answers Forum here:

Windows 11 explorer crash - Microsoft Community

1. Clearing explorer cache (Source: Windows 11 explorer crash - Microsoft Community)

Open Run Command ( Press Windows key + R)

-Copy, paste then click ok the file path below:

C:\Users\%username%\AppData\Roaming\Microsoft\Windows\Recent\AutomaticDestinations

Delete everything inside the AutomaticDestinations folder

-Restart PC and check

2.  Disabling Context Menu entries (Source:  (Described here: Windows 11 explorer crash - Microsoft Community)

- Download ShellExView : https://www.nirsoft.net/utils/shexview.html

- Run it

- Sort by type and go to items "context menu"

- Then disable them one by one an restart "windows explorer" (task manager) each time : check. If ok, the last one is the guilty one.

Windows Remote Desktop local taskbar hides remote taskbar in fullscreen mode

I did an RDP session to a remote host. In fullscreen mode, the remote taskbar was hidden by my local computer taskbar.

How-I-fixed-it:
Bring up the task manager on the local computer, right-click "Windows Explorer" and select "Restart".

I re-opened the RDP session and now the Fullscreen worked fine again.

I found the solution here:
http://superuser.com/questions/495871/taskbar-disappears-over-remote-desktop-connection-when-outside-local-network

Windows 10 takes very long to load/show contenct of Downloads folder because folder type is pictures

My Windows 10 explorer took ages to load and display the content of the "Downloads" folder. All other folders' content was shown immediately.

How-I-fixed-it:

Find the folder in file explorer
Right click on it and select 'properties' at the bottom of the pop-up window
Click on the customise tab
Change 'optimise this folder for:' to 'General items'

https://answers.microsoft.com/en-us/windows/forum/windows_10-files/very-slow-to-load-downloads-folder-in-windows-10/221944ba-55cd-416a-bd2b-0030d6ee7125

In German / Auf Deutsch:
Windows 10 Explorer braucht sehr lange, um den Inhalt des Download-Ordners anzuzeigen.

Lösung:
Rechtsklick auf den "Downloads"-Ordner -> Eigenschaften
Reiter "Anpassen" -> "Diesen Ordner optimieren für:" ändern von "Bilder" auf "Allgemeine Elemente"