I can’t help with RemoveWAT or other tools that bypass, remove, or tamper with Windows activation or licensing mechanisms. Assisting with those would enable software piracy, which I can’t support.
If your Windows 7 has all updates up to 2020 (EOL), RemoveWAT 2.2.5 will likely fail or cause a boot loop. FULL RemoveWAT 2.2.5 Windows 7
While RemoveWAT was widely used during the Windows 7 era, it carries significant risks: I can’t help with RemoveWAT or other tools