diff --git a/src/core_main.rs b/src/core_main.rs
index 6c588a48a..fe58083b7 100644
--- a/src/core_main.rs
+++ b/src/core_main.rs
@@ -201,13 +201,11 @@ pub fn core_main() -> Option<Vec<String>> {
                     .ok();
                 return None;
             } else if args[0] == "--install-cert" {
-                if args.len() == 1 {
-                    log::error!("--install-cert must be called with cert file path");
-                    return None;
-                }
                 #[cfg(windows)]
-                hbb_common::allow_err!(crate::platform::windows::install_cert(&args[1]));
-                if args.len() > 2 && args[2] == "silent" {
+                hbb_common::allow_err!(crate::platform::windows::install_cert(
+                    crate::platform::windows::DRIVER_CERT_FILE
+                ));
+                if args.len() > 1 && args[1] == "silent" {
                     return None;
                 }
                 #[cfg(all(windows, feature = "virtual_display_driver"))]
@@ -220,10 +218,12 @@ pub fn core_main() -> Option<Vec<String>> {
                 hbb_common::allow_err!(crate::platform::windows::uninstall_cert());
                 return None;
             } else if args[0] == "--install-idd" {
-                // Install cert if cert file is provided (2rd arg).
-                if args.len() == 2 {
-                    #[cfg(windows)]
-                    hbb_common::allow_err!(crate::platform::windows::install_cert(&args[1]));
+                #[cfg(windows)]
+                {
+                    // It's ok to install cert multiple times.
+                    hbb_common::allow_err!(crate::platform::windows::install_cert(
+                        crate::platform::windows::DRIVER_CERT_FILE
+                    ));
                 }
                 #[cfg(all(windows, feature = "virtual_display_driver"))]
                 if crate::virtual_display_manager::is_virtual_display_supported() {
diff --git a/src/platform/windows.rs b/src/platform/windows.rs
index aae21a4ce..4799fa730 100644
--- a/src/platform/windows.rs
+++ b/src/platform/windows.rs
@@ -63,6 +63,8 @@ use windows_service::{
 use winreg::enums::*;
 use winreg::RegKey;
 
+pub const DRIVER_CERT_FILE: &str = "RustDeskIddDriver.cer";
+
 pub fn get_cursor_pos() -> Option<(i32, i32)> {
     unsafe {
         #[allow(invalid_value)]
@@ -1029,7 +1031,7 @@ if exist \"{tmp_path}\\{app_name} Tray.lnk\" del /f /q \"{tmp_path}\\{app_name}
     let src_exe = std::env::current_exe()?.to_str().unwrap_or("").to_string();
 
     let install_cert = if options.contains("driverCert") {
-        let s = format!(r#""{}" --install-cert "RustDeskIddDriver.cer""#, src_exe);
+        let s = format!(r#""{}" --install-cert"#, src_exe);
         if silent {
             format!("{} silent", s)
         } else {