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Windows Setup: Fix "Access Denied" issue during VeraCrypt update after a Windows upgrade

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During a Windows upgrade, ownership of veracrypt.sys is set to TrustedInstaller, preventing VeraCrypt from accessing the file during an update.

This commit resolves the issue by temporarily taking ownership of the file to rename it, allowing the new file to be copied. The setup process now obtains additional privileges for this operation, which are properly dropped once the file copying is complete.
This commit is contained in:
Mounir IDRASSI
2024-11-25 00:05:50 +01:00
parent 8ad9e7d769
commit 0c5fcf2286
3 changed files with 256 additions and 2 deletions
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18
src/Setup/Setup.c
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@@ -765,6 +765,9 @@ BOOL DoFilesInstall (HWND hwndDlg, wchar_t *szDestDir)
BOOL bOK = TRUE;
int i, x, fileNo;
wchar_t curFileName [TC_MAX_PATH] = {0};
#ifndef PORTABLE
PRIVILEGE_STATE originalPrivileges = { 0 };
#endif
if (!bUninstall && !bDevm)
{
@@ -783,6 +786,10 @@ BOOL DoFilesInstall (HWND hwndDlg, wchar_t *szDestDir)
if (szDestDir[x - 1] != L'\\')
StringCbCatW (szDestDir, MAX_PATH, L"\\");
#ifndef PORTABLE
EnableRequiredSetupPrivileges(&originalPrivileges);
#endif
for (i = 0; i < sizeof (szFiles) / sizeof (szFiles[0]); i++)
{
BOOL bResult, zipFile = FALSE;
@@ -1114,10 +1121,19 @@ err:
if (lpMsgBuf) LocalFree (lpMsgBuf);
if (!Silent && MessageBoxW (hwndDlg, szTmp2, lpszTitle, MB_YESNO | MB_ICONHAND) != IDYES)
if (!Silent && MessageBoxW(hwndDlg, szTmp2, lpszTitle, MB_YESNO | MB_ICONHAND) != IDYES)
{
#ifndef PORTABLE
RestorePrivilegeState(&originalPrivileges);
#endif
return FALSE;
}
}
}
#ifndef PORTABLE
RestorePrivilegeState(&originalPrivileges);
#endif
if (bUninstall == FALSE)
{