In terms of security, downloading and running tools from unverified sources can expose systems to malware and other security threats. Users should exercise caution and consider the potential risks before proceeding.

If you need a 25-digit product key, you can find yours on your PC's packaging or COA label Find your Windows product key - Microsoft Support

Many installation guides tell users to disable Windows Defender or add folder exclusions. This is a massive red flag. By doing so, you give the toolkit permission to operate without scrutiny—but you also allow any subsequent malware to hide in the same excluded folders.

Tools like MS Toolkit are considered "gray market" or "piracy" software. Security experts warn against them because: Security Risk

Modern Windows 10 and 11 includes telemetry that frequently phones home. When Microsoft detects a KMS emulator, it doesn't always show an error immediately. Instead, it flags the machine. Some corporate networks have seen data leakage when the emulator incorrectly responds to network probes.