Regarding the operation of the HUAWEI desktop cloud system, which of the following descriptions is incorrect?

Regarding the operation of the HUAWEI desktop cloud system, which of the following descriptions is incorrect?
A . Users are prohibited from uninstalling the.NET Framework software of the desktop virtual machine to prevent the virtual desktop from malfunctioning due to missing related services.
B . In order to make the desktop virtual machine system run more smoothly, users can install optimization software by themselves to clean up and optimize the registry and junk files.
C . In order to avoid the leakage of desktop information when the desktop virtual machine is not used for a period, the user needs to activate the system default screen saver.
D . The user is not allowed to start the sleep mode when using the desktop virtual machine to prevent the loss of user data after the desktop virtual machine sleeps.

Answer: B