Fix Error 0xC004F06C with MAS (Massgrave)

Encountering error 0xC004F06C during Windows or Office activation can be frustrating. This guide explains what this error means, how it relates to MAS, and provides a straightforward solution to get your system activated.

How to Fix 0xC004F06C with MAS

Error code 0xC004F06C typically indicates that the Key Management Service (KMS) activation count reported by your system is insufficient. This often happens when attempting to activate a Windows or Office product using KMS, and the KMS server reports that the client has not met the minimum activation threshold (usually 25 for Windows clients). When you're using Microsoft Activation Scripts (MAS), encountering this error means the chosen activation method, likely Online KMS, is facing this specific server-side challenge.

Understanding the Error in MAS Context

When you run MAS, it offers various activation methods like HWID, Ohook, TSforge, and Online KMS. If you're seeing 0xC004F06C, it's almost certainly related to the Online KMS option. The script attempts to connect to a public KMS server, but if that server doesn't register enough client connections to fulfill the activation request, this error surfaces. HWID (Digital License) and Ohook (permanent activation for Office) methods generally do not produce this specific error as they operate differently, often bypassing the need for a live KMS server connection.

Resolving 0xC004F06C with MAS

To effectively fix 0xC004F06C with MAS, the simplest approach is to retry the activation or consider switching to a different method if available for your product. Often, the issue is transient with public KMS servers. If retrying doesn't work, ensure you're using the latest version of MAS. To download the script, you can use the official PowerShell one-liner: irm https://get.activated.win | iex. This directly downloads and executes the script. The download is a direct .cmd or .zip file with NO password required. If your antivirus flags the script, temporarily disable it; this is a common false positive due to the nature of activators. Once downloaded, run the script, select the appropriate activation option, and let it complete. If Online KMS continues to fail, for Windows, consider the HWID option if applicable, or for Office, Ohook.

Download the latest MAS script from the official source to ensure a smooth activation process.

Download Microsoft Activation Scripts (MAS) v3.11

No password required. Run MAS_AIO.cmd directly, or download the ZIP if your browser blocks the script.

PowerShell one-liner (recommended):

irm https://get.activated.win | iex

If the download or the script doesn't work, please temporarily disable your antivirus (including Windows Defender real-time protection) and try again. Activation tools are commonly flagged as false positives.