Hi @杰 朱
Thanks for your question.
You can probably check the steps below to start with.
Check system requirements: Ensure that your Windows 11 system meets the minimum requirements for installing SSMS. Make sure you have the necessary operating system version and required dependencies. You can find from here
Run the installer as an administrator: Right-click on the SSMS installer and select "Run as administrator." This will ensure that the installation process has the necessary permissions to complete successfully.
Download the installer again: It's possible that the downloaded installer file may be corrupted. Try downloading the SSMS installer again from here Microsoft site.
Check if there are any antivirus software on your machine.
You can also follow below Microsoft document for Suggested resolution.
SSMS setup failed or requires restart - SQL Server Management Studio (SSMS) | Microsoft Learn
Let us know if you need any further information.