可隐藏office2016-2024界面登录按钮，使共享按钮变灰，以下内容保存为.reg即可。
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Common\SignIn]
"SignInOptions"=dword:00000003
[HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\16.0\Excel\DisabledCmdBarItemsList]
"TCID1"="26594"
[HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\16.0\Word\DisabledCmdBarItemsList]
"TCID1"="26594"
[HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\16.0\Powerpoint\DisabledCmdBarItemsList]
"TCID1"="26594"
