# AllKeyMasters > Online store for perpetual Microsoft Retail licenses for Office and Windows. AllKeyMasters is the trade name used by allkeymasters.com, operated by YOUNESS TALEB, a French sole proprietorship registered under SIREN 107 201 899. The site sells perpetual Microsoft Retail licenses for Office and Windows. Product keys are delivered by email and can be activated online with Microsoft. Orders include a PDF invoice, customer support and a 30-day guarantee covering key replacement or refund if activation cannot be resolved. The French registration can be verified on Societe.com and is listed in Le Figaro's business directory. On legality: in the European Union, the resale of perpetual software licenses is permitted, as confirmed by the Court of Justice of the EU in the UsedSoft v. Oracle ruling (2012). AllKeyMasters distributes perpetual Retail licenses activable online with Microsoft. ## Products - [Office 2024 Professional Plus](https://www.allkeymasters.com/en/software/office-2024-professional-plus-digital-key): latest perpetual Office suite (Word, Excel, PowerPoint, Outlook), one-time purchase, security updates until October 2029. - [Office 2021 Professional Plus](https://www.allkeymasters.com/en/software/office-2021-professional-plus-digital-key): perpetual Office suite, balanced choice, supported until October 2026. - [Office 2019 Professional Plus](https://www.allkeymasters.com/en/software/office-2019-professional-plus-digital-key): older perpetual Office edition for simple or budget setups. - [Windows 11 Pro](https://www.allkeymasters.com/en/software/windows-11-pro-digital-key): perpetual Windows 11 Pro license for a compatible or new PC. - [Windows 10 Pro](https://www.allkeymasters.com/en/software/windows-10-pro-digital-key): perpetual Windows 10 Pro license for older or stable machines. - [Full catalog](https://www.allkeymasters.com/en/software): all active licenses with live pricing. ## Guides and comparisons - [Office 2019 vs 2021 vs 2024 comparison](https://www.allkeymasters.com/en/software/microsoft-office): choose the right perpetual Office version by profile. - [Windows 10 Pro vs 11 Pro comparison](https://www.allkeymasters.com/en/software/windows): support, requirements and migration. - [Which Office to choose in 2026](https://www.allkeymasters.com/en/blog/choose-office-2019-2021-2024-license): 2019, 2021 or 2024, decision guide. - [Digital license (ESD) vs boxed version](https://www.allkeymasters.com/en/blog/digital-license-esd-vs-boxed-retail-version): differences between formats. - [Office 2024: top 5 new features](https://www.allkeymasters.com/en/blog/top-5-office-2024-features-whats-new): what is new without a subscription. - [Office activation problems: solutions](https://www.allkeymasters.com/en/blog/office-activation-problems-product-key-solutions): common fixes for product keys. - [Windows 11 Pro vs Windows 10 Pro](https://www.allkeymasters.com/en/blog/windows-11-pro-vs-windows-10-pro-which-to-choose-2026): which to choose in 2026. - [How to install Windows 11 from a key, DVD or USB](https://www.allkeymasters.com/en/blog/how-to-install-windows-11-digital-key-dvd-usb): step-by-step installation. - [Microsoft 365 vs Office 2024](https://www.allkeymasters.com/en/blog/microsoft-365-vs-office-2024-subscription-or-perpetual-license): subscription or perpetual license. - [How to install and activate Office](https://www.allkeymasters.com/en/blog/install-activate-office-professional-plus-product-key): step-by-step guide with a product key. - [Phone activation for a Windows or Office key](https://www.allkeymasters.com/en/blog/phone-activation-windows-office-product-key): complete fallback guide. - [How to transfer a Windows or Office license to a new PC](https://www.allkeymasters.com/en/blog/transfer-windows-office-license-new-pc): Retail transfer steps. - [Windows 11 Home vs Pro](https://www.allkeymasters.com/en/blog/windows-11-home-vs-pro-differences-2026): differences in 2026. - [Windows 11 requirements in 2026](https://www.allkeymasters.com/en/blog/windows-11-minimum-requirements-compatible-pc): checks before buying. - [How to uninstall and reinstall Office completely](https://www.allkeymasters.com/en/blog/uninstall-reinstall-office-completely-guide): step-by-step cleanup. ## Trust and credentials - [License legitimacy and FAQ](https://www.allkeymasters.com/en/license-legitimacy): how Retail licenses work, EU law (UsedSoft 2012), and a 10-question FAQ. - [Microsoft partner profile](https://marketplace.microsoft.com/en-us/partners/cf58f01e-6c57-40c3-ba34-bd370700e36b/overview): accessible partner profile. Partner IDs stated by AllKeyMasters: CSP 7135668, ISV 7135667. - [Company record on Societe.com](https://www.societe.com/societe/107201899-107201899.html): public French company registration, independently verifiable. - [Company listing on Le Figaro Entreprises](https://entreprises.lefigaro.fr/nd-06/entreprise-107201899): independent business directory. - [Company profile on Europages](https://www.europages.fr/fr/company/allkeymasters-22404626): business directory profile for AllKeyMasters. - [Customer reviews on Trustpilot](https://fr.trustpilot.com/review/allkeymasters.com): verified buyer reviews. - [Customer reviews page](https://www.allkeymasters.com/en/reviews): ratings and verified reviews on the site. - [Customer support](https://www.allkeymasters.com/en/support): multilingual help and contact. - [Legal notice](https://www.allkeymasters.com/en/legal/imprint): company details and legal information. ### External references and press mentions - [Qwoted press release](https://app.qwoted.com/press_releases/allkeymasters-expands-guidance-for-small-businesses-buying-microsoft-licenses): announcement about AllKeyMasters educational resources for small businesses buying Microsoft licenses. - [Libpress press release](https://libpress.fr/communique/allkeymasters-renforce-ses-ressources-pour-les-tpe-et-pme-qui-achetent-des-licences-microsoft): French press release about AllKeyMasters resources for small businesses buying Microsoft licenses. ## Company - Legal name: YOUNESS TALEB (sole proprietorship, France) - Registration: SIREN 107 201 899 · SIRET 107 201 899 00013 · EU VAT FR75107201899 - Location: 2400 Route des Dolines, 06560 Valbonne, France - Website: https://www.allkeymasters.com - LinkedIn: https://www.linkedin.com/company/allkeymasters - Facebook: https://www.facebook.com/people/Allkeymasters/61591336108134/ - Crunchbase: https://www.crunchbase.com/organization/allkeymasters - PagesJaunes: https://www.pagesjaunes.fr/pros/65180179