diff --git a/README.md b/README.md
index 214f6b9..8f5aa97 100644
--- a/README.md
+++ b/README.md
@@ -69,8 +69,7 @@ other platforms, refer to the [Building](#building) section.
 ## Running
 ### Windows
 
-Execute `xsystem35`, and a dialog will appear for you to select a folder.
-Choose the game folder (where the ALD files are located).
+Copy `xsystem35.exe` to the game folder and run it.
 
 ### Android
 
diff --git a/src/profile.c b/src/profile.c
index 8f31e43..c6ccd68 100644
--- a/src/profile.c
+++ b/src/profile.c
@@ -35,7 +35,6 @@
 
 #define RC_NAME ".xsys35rc"
 #define RC_LINE_CHARS_MAX 256
-#define REGKEY_PROFILE XSYSTEM35_REGKEY "\\profile"
 
 struct profile_kv {
 	char *name;
diff --git a/src/win/dialog.c b/src/win/dialog.c
index 382ee61..07166b1 100644
--- a/src/win/dialog.c
+++ b/src/win/dialog.c
@@ -17,7 +17,6 @@
  *
  */
 #include <windows.h>
-#include <shlobj.h>
 #undef min
 #undef max
 #include <SDL_syswm.h>
@@ -25,8 +24,6 @@
 #include "sdl_private.h"
 #include "resources.h"
 
-#define REGVAL_RECENT_FOLDER "RecentFolder"
-
 static HWND get_hwnd(SDL_Window *window) {
 	SDL_SysWMinfo info;
 	SDL_VERSION(&info.version);
@@ -34,49 +31,6 @@ static HWND get_hwnd(SDL_Window *window) {
 	return info.info.win.window;
 }
 
-static int CALLBACK select_game_callback(HWND hwnd, UINT uMsg, LPARAM lParam, LPARAM lpData) {
-	if (uMsg == BFFM_INITIALIZED)
-		SendMessage(hwnd, BFFM_SETSELECTION, (WPARAM)TRUE, lpData);
-	return 0;
-}
-
-boolean current_folder_has_ald(void) {
-	WIN32_FIND_DATA find_data;
-	HANDLE hFind = FindFirstFile("*.ALD", &find_data);
-	if (hFind == INVALID_HANDLE_VALUE)
-		return FALSE;
-	FindClose(hFind);
-	return TRUE;
-}
-
-boolean select_game_folder(void) {
-	char title[256];
-	LoadString(GetModuleHandle(NULL), IDS_CHOOSE_GAME_FOLDER, title, sizeof(title));
-
-	char path[MAX_PATH] = "";
-	DWORD value_size = sizeof(path);
-	RegGetValue(HKEY_CURRENT_USER, XSYSTEM35_REGKEY, REGVAL_RECENT_FOLDER,
-				RRF_RT_REG_SZ, NULL, path, &value_size);
-
-	BROWSEINFO bi = {
-		.lpszTitle = title,
-		.ulFlags = BIF_RETURNONLYFSDIRS,
-		.lpfn = &select_game_callback,
-		.lParam = (LPARAM)path,
-	};
-	LPITEMIDLIST pidl = SHBrowseForFolder(&bi);
-	if (!pidl)
-		return FALSE;
-	SHGetPathFromIDList(pidl, path);
-	CoTaskMemFree(pidl);
-	if (!SetCurrentDirectory(path))
-		return FALSE;
-
-	RegSetKeyValue(HKEY_CURRENT_USER, XSYSTEM35_REGKEY, REGVAL_RECENT_FOLDER,
-				   REG_SZ, path, strlen(path) + 1);
-	return TRUE;
-}
-
 static INT_PTR CALLBACK text_dialog_proc(HWND hDlg, UINT msg, WPARAM wParam, LPARAM lParam)
 {
 	static INPUTSTRING_PARAM *p;
diff --git a/src/win/dialog.h b/src/win/dialog.h
index 683fdd2..d52d267 100644
--- a/src/win/dialog.h
+++ b/src/win/dialog.h
@@ -24,8 +24,6 @@
 struct inputstring_param;
 struct inputnum_param;
 
-boolean current_folder_has_ald(void);
-boolean select_game_folder(void);
 boolean input_string(struct inputstring_param *p);
 boolean input_number(struct inputnum_param *p);
 
diff --git a/src/win/resources.h b/src/win/resources.h
index ee06a9b..b60dca6 100644
--- a/src/win/resources.h
+++ b/src/win/resources.h
@@ -19,8 +19,6 @@
 #ifndef __RESOURCES_H__
 #define __RESOURCES_H__
 
-#define XSYSTEM35_REGKEY "Software\\Kichikuou\\xsystem35"
-
 #define IDR_MENU1              101
 #define IDD_DIALOG1            103
 #define IDC_TEXT               104
diff --git a/src/xsystem35.c b/src/xsystem35.c
index 309f65e..5482b07 100644
--- a/src/xsystem35.c
+++ b/src/xsystem35.c
@@ -476,12 +476,6 @@ int main(int argc, char **argv) {
 	if (strcmp(argv[1], "-gamedir") == 0)
 		chdir(argv[2]);
 #endif
-#ifdef _WIN32
-	if (argc == 1 && !current_folder_has_ald()) {
-		if (!select_game_folder())
-			return 0;
-	}
-#endif
 	
 	load_profile();
 	check_profile();