Windows System Files Replacer

Replace Windows system files with the free Windows Se7en File Replacer. This is designed to automatically backup the old windows system file and replace it with the selected system file.

Unlike windows XP, you cannot replace a Windows system file in vista or Windows 7, unless you have administrative privileges. Microsoft has introduced this to prevent accidental overwriting of windows system files, which may lead to unpredictable system performance ranging from application errors to operating system crashes. System instability caused by non-standard replacement of system files was a common problem faced with earlier versions of windows.

However, there may be instances where you would want to replace Windows system files. For example, to install custom themes in Windows 7, Vista and Windows XP, you need to patch Uxtheme.dll (theme manager dll), themeui.dll and themeservice.dll. All these files are located in the system folder – C:/windows/system32. Patching these windows system DLLs would require you to replace the Windows system files with the patched (modified) files.Once you patch up the three DLLs, you may be able to install any custom theme.

Windows Se7en File Replacer makes the job of replacing Windows system files easy and quick. This program will automatically backup the old system file, “Take Ownership” of the file and replace it with your new system file. The utility runs in Admin mode, facilitating the replacement of the system files.

How to replace Windows System Files with Windows Se7en File Replacer?

For example, to replace Uxtheme.dll, themeui.dll and shsvcs.dll with corresponding patched DLLs that lets you install custom Windows themes, follow the steps mentioned below.

  • 1. Download the patched UxTheme.dll and other files for the respective Windows OS (Vista or windows 7) from here, extract the zip and place the contents in a folder on your PC.
  • 2. Free download Windows Se7en File Replacer from here
  • 3. Drag and drop the modified DLLs (files extracted in step 1 above), over this Windows system file replacer utility or manually select them by clicking Manual button. The Replacer will first look in the “system32” folder for a corresponding match with your newly dragged or selected file. If the OLD file is found, it will be backed up and replaced without any prompt.Otherwise, you will be asked to select it manually.

Note that drag and drop only works if “UAC” is disabled. Otherwise you will have to use the Manual button.

Windows System files Replacer

Windows Se7en File Replacer will also let you replace a system file in use, if you choose the “End progress if file is running” check-box. It replaces the file after ending the process using it. You can also choose to automatically start the process after the system files are replaced.

Download Windows Se7en File Replacer to replace windows system files. This utility works on Windows 7 and Windows Vista.

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