● Covered by 1 source · 1 reportLow impact1 neutral
Retired Microsoft Engineer Explains Leak of FCKGW Windows XP Key and Copy Protection Details
Key points
- FCKGW key was a Windows XP Volume License Key (VLK).
- Retail XP validation used 10MB of encrypted Microsoft Bob data.
- Major OEM likely leaked the Volume media and key before release.
- Microsoft blacklisted the key with Service Pack 1 and 2.
Origin of the FCKGW Key Leak
Dave Plummer, a retired Microsoft engineer, explained the origins of the FCKGW-RHQQ2-YXRKT-8TG6W-2B7Q8 Windows XP key. This key, a Volume License Key (VLK), was intended for Microsoft partners and OEMs to install Windows XP on multiple machines without individual activation. Plummer believes a major OEM, such as Dell or Intel, leaked the Volume media and the corresponding key before the official Windows XP launch on October 25, 2001. The pirate group Devils0wn then rapidly disseminated it online.
Windows XP Media Types and Validation
Windows XP had two primary media versions: Retail and Volume. Retail versions were for individual purchases, while Volume versions were for enterprise clients and OEMs. Each version used different keys. The installer for retail copies validated the input key against specific encrypted data on the disc, which Plummer identified as the entire 10 MB of Microsoft Bob. This encryption has not been decrypted to date.
Post-Leak Measures by Microsoft
Following the widespread leak, Microsoft blacklisted the FCKGW key, along with 639 others, when Service Pack 1 was released. Service Pack 2 further enhanced these measures with Windows Genuine Advantage checks, which blocked updates entirely for machines using blacklisted VLKs. Microsoft's approach aimed to address the piracy without causing undue inconvenience to legitimate customers.
✨ This summary was generated by AI from the outlets' reporting listed below. It is not independently verified and may contain errors — check the original sources. How BrevFeed works →
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Reporting from
A retired Microsoft engineer revealed how the widely known FCKGW Windows XP key leaked, detailing that the Volume License Key (VLK) was likely distributed by a major OEM before the official release. The validation mechanism for retail copies used 10MB of encrypted Microsoft Bob data, while the leaked Volume key bypassed individual activation, leading to its widespread use.