diff --git a/FastGithub.Http/HttpClientHandler.cs b/FastGithub.Http/HttpClientHandler.cs
index 359b412..f7d4b3f 100644
--- a/FastGithub.Http/HttpClientHandler.cs
+++ b/FastGithub.Http/HttpClientHandler.cs
@@ -10,7 +10,6 @@ using System.Net.Http;
 using System.Net.Security;
 using System.Net.Sockets;
 using System.Runtime.CompilerServices;
-using System.Security.Authentication;
 using System.Security.Cryptography.X509Certificates;
 using System.Threading;
 using System.Threading.Tasks;
@@ -144,7 +143,6 @@ namespace FastGithub.Http
             await sslStream.AuthenticateAsClientAsync(new SslClientAuthenticationOptions
             {
                 TargetHost = tlsSniValue.Value,
-                EnabledSslProtocols = SslProtocols.Tls12 | SslProtocols.Tls13,
                 RemoteCertificateValidationCallback = ValidateServerCertificate
             }, cancellationToken);
 
diff --git a/README.md b/README.md
index 9c2084b..66284b3 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,8 @@ github加速神器，解决github打不开、用户头像无法加载、releases
 ### 2 部署方式
 #### 2.1 windows-x64
 * 双击运行FastGithub.UI.exe
+* `fastgithub.exe start` // 以windows服务安装并启动
+* `fastgithub.exe stop` // 以windows服务卸载并删除
 
 #### 2.2 linux-x64
 * 执行`./fastgithub`