unable to send ctrl alt del

[AmiardBrice]

Hi everyone,

i've met a strang behaviour recently,

In on of our host i can't send a ctrl+alt+del in aim to unloch a windows serveur 2019.
I had to add a regsiter key "SoftwareSASGeneration" to 1 in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System

it's an aquivalent to
"Open the Local Group Policy Editor on the agent machine:
Press WIN+R to open the run dialog and type gpedit.msc and press Enter.
Expand Computer Configuration > Administrative Templates > Windows Components
Select Windows Logon Options.
Double-click Disable or enable software Secure Attention Sequence.
Select Enabled.
Select "Ease of Access applications" from the drop down list in the bottom left pane.
Click OK."
(strangely i can't found it in gpedti.msc this is the reason why i'v added a key in regedit)

My first question :

• have you any idea of : why acces has worked 1 month ago without the SoftwareSASGeneration (no big windows MAJ during the last month) ?

• how TeamViewer can do a ctrl-alt-del without this key

Best regards

[rustdesk]

Thanks, good questions. I don't know either, need more time to investigate.

[rustdesk]

ChatGPT gives some hints, we will verify.

[rustdesk]

I guess TV might do this way

Modify SoftwareSASGeneration -> send sas -> revert SoftwareSASGeneration back.

[AmiardBrice]

Hi,
Did you have news about this problem ?

[rustdesk]

Before this PR (rustdesk/rustdesk#12226) is merged and new version released, you have to set SoftwareSASGeneration (set to 1) in registery yourself.

https://www.google.com/search?q=SoftwareSASGeneration+set&oq=SoftwareSASGeneration+set&gs_lcrp=EgZjaHJvbWUyBggAEEUYOTIJCAEQABgKGIAEMgYIAhAAGB4yCggDEAAYgAQYogQyBwgEEAAY7wUyCggFEAAYgAQYogQyBwgGEAAY7wXSAQgxNzA2ajBqN6gCALACAA&sourceid=chrome&ie=UTF-8