Kmuu838f.dll Link

This DLL acts as a Universal User Interface (UUI) module for Kyocera printing hardware. It is typically located in the printer driver directory: C:\Windows\System32\spool\DRIVERS\x64\3\ .

If you determine the DLL is not needed or is malicious: kmuu838f.dll

: The most immediate workaround is to prevent the local printer from being mapped to the remote session. This can be done in the RDP client settings under Local Resources > Local devices and resources > uncheck Printers . This DLL acts as a Universal User Interface

A legitimate, safe DLL should never reside directly in C:\Windows\System32 unless it is a Microsoft-signed file. If you spot kmuu838f.dll there, treat it with high suspicion. treat it with high suspicion.