Microsoft officially ended support for Windows 7 on January 14, 2020. This means the operating system no longer receives security updates or bug fixes. Running an outdated OS is risky enough, but running an outdated OS with hacked system files is a recipe for disaster. A Windows 7 PC activated with RemoveWAT is an extremely easy target for cybercriminals.
: It disables the "time bomb" feature found in evaluation ISOs, allowing them to be used indefinitely. Capabilities and Limitations Status/Effect
If your Windows 7 has all updates up to 2020 (EOL), RemoveWAT 2.2.5 will likely fail or cause a boot loop.
: Instead of providing a serial key, it completely uninstalls the WAT files from the system, making the OS believe it does not need to be activated.