1. Deployment timeline
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2. Deployment timeline - Windows 10
Month 1
Month 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 E O A M
Phase 1a E O A M
Phase 1b E O A M
Phase 2a E O A M
Phase 2b E O A M
Phase 3a E O A M E
Personalized to users with deployment details
Phase 3b O
Opt-Out deadline for employees with business need to remain on existing OS A
Upgrade is available in <software deployment tool> for voluntary update at the employee’s convenience M
Mandatory Install
Microsoft divides each Windows 10 deployment into phases to minimize risk of unforeseen issues and potential impact on support staff. A cross-section of 10,000 – 15,000 global employees is targeted for each deployment phase. We suspend deployments to accommodate holiday vacations and stage additional deployments as necessary.