Hey there! I’ve dealt with this exact frustration before—trying to get that classic Windows 7 title bar look on Windows 11’s File Explorer, especially for those stubborn system folders that WinAeroTweaker doesn’t seem to fix right away. Let me walk you through the solutions that worked for me:

• Dig deeper into WinAeroTweaker’s settings
  WinAeroTweaker has some hidden options that might’ve slipped past you. Head to the File Explorer section, then the Title Bar and Frame submenu. Look for an option like "Apply title bar color to all folders (including system folders)"—sometimes it’s labeled as "Force accent color on system directories". If you don’t see this, update WinAeroTweaker to the latest version; newer builds added this fix specifically for tricky system folders.

• Manual Registry tweak for forced color override
  If WinAeroTweaker still doesn’t do the trick, the Registry can help you force the title bar color on system folders. Here’s how:

  1. Press Win + R, type regedit, and hit Enter to open the Registry Editor.
  2. Navigate to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Themes\Personalize
  3. Find the DWORD value AppsUseLightTheme—set it to 0 if you want dark title bars (to match Win7’s classic contrast), or 1 for light (though that’s probably not what you’re after here).
  4. Next, go to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent
  5. Create a new DWORD value named AccentColorMenu and set it to your preferred title bar color in hex (for classic Win7 blue, use FF0078D7).
  6. Restart File Explorer: right-click the taskbar, open Task Manager, find Windows Explorer, right-click it and select Restart to apply changes.

• Go all-in with a Win7-inspired theme pack
  If you want the full Windows 7 UI vibe (not just title bars), custom themes for Windows 11 can replicate the entire look—including system folder title bars. First, enable third-party theme support: go to Settings > Personalization > Themes, then use a tool like UltraUXThemePatcher to patch your system (it’s safe if you grab it from reputable sources). Once patched, install a Win7-themed pack, and it should override those stubborn system folder title bars automatically.

I hope one of these methods gets you that clear, Win7-style contrast you’re missing—system folders can be real troublemakers, but these fixes should do the trick!

备注：内容来源于stack exchange，提问作者PxB