Windows 10: System32 Missing mstsc.exe.mui for Remote Desktop Connection

I have a brand new, Lenovo Windows 11 Pro 23H2 workstation fresh out of the box. Everything working great EXCEPT Remote Desktop Connection. When I try to open RDP, I get the message "the system cannot find the file specified" C:\\Windows\System32\<LANG_NAME>\mstc.exe.MUIThis file is indeed missing from EN-US as language. The only language pack installed is EN-US. Tried copying the file from a good machine to my system32 but it's blocking me due to permissions even with local admin rights.Tried uninstalling/re-installing RDP from Settings/Apps with same error message resulting. Sinc

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Remote desktop (MSTSC) connection bar default location settings.

Can we change Remote desktop connection default connection bar settings and set according to our requirement.
means we have to make it small and required to shift right side of screen by default as and when we access PC using remote desktop (MSTSC).

 

Display remote desktop connection on two monitors (version 10.1 from MS Store, not the MSTSC version)?

Where is the option to display remote desktop connection on two monitors (version 10.1 from MS Store, not the MSTSC version)? In MSTSC, there was the option "Use all of my monitors for the remote session". I can't find that option in the new MS Store version
of Remote Desktop? Where is it?

 

Remote Desktop Freezing when using MSTSC but not when using Microsoft Remote Desktop App from Microsoft Store

As a company, we have clients connect to our network using a VPN and MSTSC. Since our company has gone fully remote, many of our users are experiencing a significant number of remote session freezes which require a disconnect and reconnect to the remote
session. Mouse movements and typing that occurred while frozen will appear upon reconnection.

We are able to avoid this freezing issue if using the Microsoft Remote Desktop App, offered through the Microsoft Store. Ericom Blaze can also establish and maintain a connection better than Windows installed MSTSC. On the MSTSC settings, I've tried reducing
the color to 15-bit and setting performance to low-speed as low as 56kbps. Despite these changes, freezes continue to occur in the windows installed MSTSC.

I would have all employee use the Remote Desktop App from the Microsoft Store, but it doesn't appear to support multi-screen connections.

What can I do to create a remote sessions with the connection smoothing of the Microsoft Remote Desktop App but with the multi-monitor ability of the Windows installed MSTSC?