remote desktop cache \ Permanently caching bitmaps

Question

Hi, I noticed that the folder takes up 300MB of disk space. C:\Users\<username>\AppData\Local\Microsoft\Terminal Server Client\Cache

As I understood it is needed for caching bitmaps.

1. How it works?
2. How effective is it? Disabling this, I did not notice any difference. Then the question is, does this function make any sense?
3. Can this be turned off from the server side?

Answer 1

HI 47451047,

1.How it works?
Caching bitmap means that images and other bitmap resources are locally stored on the client computer for reusing them later. This way, the remote server or PC doesn't send images twice reducing the amout of data sent and saving your bandwidth usage.

When is caching bitmap enabled, it creates a client-side cache of bitmaps that are rendered in the session. It provides a significant improvement on bandwidth usage, and it should always be enabled (unless there are other security considerations).

2.How effective is it? Disabling this, I did not notice any difference. Then the question is, does this function make any sense?

What does the "Bitmap Caching" option do in the Remote Desktop Client?
https://newbedev.com/what-does-the-bitmap-caching-option-do-in-the-remote-desktop-client

Please Note: Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice.

3.Can this be turned off from the server side?

Usually we need to use the "persistent bitmap" option on the RDP client side. If you want to disable it on the server side, you can try to change it by using below policy and reboot the server to check the result.

remote desktop services\remote desktop session host\remote session environment\
configure image quality for remotefx adaptive graphics enabled set to lossless

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