rufus/res/setup/setup.c

125 lines
4.4 KiB
C

/*
* Setup - Wrapper around Microsoft's setup.exe that adds registry
* bypasses for in-place Windows 11 upgrade.
*
* Copyright © 2024 Pete Batard <pete@akeo.ie>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <sys/types.h>
#include <sys/stat.h>
static BOOL RegDeleteNodeRecurse(HKEY hKeyRoot, CHAR* lpSubKey)
{
CHAR* lpEnd;
LONG lResult;
DWORD dwSize;
CHAR szName[MAX_PATH];
HKEY hKey;
FILETIME ftWrite;
// First, see if we can delete the key without having to recurse.
if (RegDeleteKeyA(hKeyRoot, lpSubKey) == ERROR_SUCCESS)
return TRUE;
lResult = RegOpenKeyExA(hKeyRoot, lpSubKey, 0, KEY_READ, &hKey);
if (lResult != ERROR_SUCCESS)
return (lResult == ERROR_FILE_NOT_FOUND);
// Check for an ending slash and add one if it is missing.
lpEnd = lpSubKey + strlen(lpSubKey);
if (*(lpEnd - 1) != '\\') {
*lpEnd++ = '\\';
*lpEnd = '\0';
}
// Enumerate the keys
dwSize = MAX_PATH;
if (RegEnumKeyExA(hKey, 0, szName, &dwSize, NULL, NULL, NULL, &ftWrite) == ERROR_SUCCESS) {
do {
*lpEnd = '\0';
strcat_s(lpSubKey, MAX_PATH, szName);
if (!RegDeleteNodeRecurse(hKeyRoot, lpSubKey))
break;
dwSize = MAX_PATH;
lResult = RegEnumKeyExA(hKey, 0, szName, &dwSize, NULL, NULL, NULL, &ftWrite);
} while (lResult == ERROR_SUCCESS);
}
*--lpEnd = '\0';
RegCloseKey(hKey);
// Try again to delete the key.
return (RegDeleteKeyA(hKeyRoot, lpSubKey) == ERROR_SUCCESS);
}
static BOOL RegDeleteNode(HKEY hKeyRoot, CHAR* lpSubKey)
{
CHAR szDelKey[MAX_PATH];
strcpy_s(szDelKey, MAX_PATH, lpSubKey);
return RegDeleteNodeRecurse(hKeyRoot, szDelKey);
}
static BOOL RegWriteKey(HKEY hKeyRoot, CHAR* lpKeyParent, CHAR* lpKeyName, DWORD dwType, LPBYTE lpData, DWORD dwDataSize)
{
BOOL r = FALSE;
HKEY hRoot = NULL, hApp = NULL;
DWORD dwDisp;
HKEY hKey;
if (RegCreateKeyExA(hKeyRoot, lpKeyParent, 0, NULL, 0, KEY_SET_VALUE | KEY_QUERY_VALUE, NULL, &hKey, &dwDisp) != ERROR_SUCCESS)
return FALSE;
r = (RegSetValueExA(hKey, lpKeyName, 0, dwType, lpData, dwDataSize) == ERROR_SUCCESS);
RegCloseKey(hKey);
return r;
}
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
CHAR lpBypasses[] = "SQ_SecureBootCapable=TRUE\0SQ_SecureBootEnabled=TRUE\0SQ_TpmVersion=2\0SQ_RamMB=8192\0";
DWORD dwUpgrade = 1, dwAttrib;
STARTUPINFOA si = { 0 };
PROCESS_INFORMATION pi = { 0 };
SECURITY_ATTRIBUTES sa = { sizeof(SECURITY_ATTRIBUTES), NULL, TRUE };
// Make sure we have 'setup.dll' in the same directory
dwAttrib = GetFileAttributesA("setup.dll");
if (dwAttrib == INVALID_FILE_ATTRIBUTES || dwAttrib & FILE_ATTRIBUTE_DIRECTORY)
MessageBoxA(NULL, "ERROR: 'setup.dll' was not found", "Windows setup error", MB_OK | MB_ICONWARNING);
// Apply the registry bypasses to enable Windows 11 24H2 in-place upgrade
RegDeleteNode(HKEY_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\AppCompatFlags\\CompatMarkers");
RegDeleteNode(HKEY_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\AppCompatFlags\\Shared");
RegDeleteNode(HKEY_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\AppCompatFlags\\TargetVersionUpgradeExperienceIndicators");
RegWriteKey(HKEY_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\AppCompatFlags\\HwReqChk",
"HwReqChkVars", REG_MULTI_SZ, lpBypasses, sizeof(lpBypasses));
RegWriteKey(HKEY_LOCAL_MACHINE, "SYSTEM\\Setup\\MoSetup", "AllowUpgradesWithUnsupportedTPMOrCPU",
REG_DWORD, (LPBYTE)&dwUpgrade, sizeof(dwUpgrade));
// Launch the original 'setup.exe' (that was renamed to 'setup.dll')
si.cb = sizeof(si);
si.dwFlags = STARTF_USESHOWWINDOW;
si.wShowWindow = SW_SHOWNORMAL;
CreateProcessA("setup.dll", NULL, NULL, NULL, TRUE, NORMAL_PRIORITY_CLASS, NULL, NULL, &si, &pi);
CloseHandle(pi.hProcess);
CloseHandle(pi.hThread);
return GetLastError();
}