Microsoft Investigates Windows Server 2025 Update Failures and BitLocker Recovery Issue

Summary
Microsoft is investigating KB5082063 installation failures on some Windows Server 2025 systems, including 0x800F0983 errors. Some affected servers may also enter BitLocker recovery; Microsoft says the configurations are typically enterprise-managed.
Key points
- Microsoft says a limited number of Windows Server 2025 systems may fail to install the KB5082063 April 2026 security update.
- Users report 0x800F0983 errors when applying the April 2026 cumulative updates.
- Some systems may boot into BitLocker recovery after installing KB5082063 and prompt for a recovery key.
- Microsoft says affected configurations are typically enterprise-managed and unlikely to affect home users.
- Microsoft is investigating the root cause and says it will provide more information.
Article Details
- Event Type
- Windows Server 2025 security update installation issue
- Impact
- Microsoft reports that a limited number of Windows Server 2025 systems may fail to install the KB5082063 April 2026 security update, with error 0x800F0983. Some affected servers may boot into BitLocker recovery and require a recovery key. Microsoft says affected configurations are typically enterprise-managed, making home users unlikely to be affected, and is investigating the root cause.
Vendors
Products
BitLockerSome servers may also boot into BitLocker recovery after installing KB5082063; Microsoft says affected configurations are typically enterprise-managed and is looking into the root cause.Windows Server 2025investigating an issue causing this month’s KB5082063 security update to fail to install on some Windows Server 2025 systems, with affected devices also reporting 0x800F0983 errors when applying the April 2026
