The error typically appears in the Client-Licensing event logs when Windows or a Store app fails to validate a digital license . In most cases, "License Type: 1" refers to the core OS activation or a primary application subscription, such as an upgrade from Windows Pro to Windows Enterprise. Core Causes
The error code 0xc03f6601 is a hexadecimal code that indicates a problem with the license installation process. According to Microsoft documentation, this error code is related to a failure in the license activation process, specifically with the license type 1 (which usually corresponds to a retail or online license). The error typically appears in the Client-Licensing event
Have you solved this error using another method? Share your experience in the comments below. The error typically appears in the Client-Licensing event