Why Windows 10 Will NOT Be Disabled by a DBX Update on June 24, 2026
A rumor is spreading on YouTube claiming that Microsoft will update the DBX (Secure Boot Revocation List) on June 24, 2026 to “disable Windows 10.” This claim is false, technically impossible, and not supported by any Microsoft documentation, firmware advisory, or security bulletin.
This page explains:
- What the DBX actually is
- How DBX updates work
- The history of DBX updates
- Why DBX updates cannot disable Windows 10
- Why the YouTube rumor is wrong
- What Windows 10 users can expect going forward
🔐 What the DBX Actually Is
The DBX is the UEFI Secure Boot Revocation List.
It contains signatures of bootloaders and certificates that are no longer trusted, usually because:
- They were compromised
- They were used in malware
- They were replaced by safer versions
The DBX is not an operating system blocker. It is a malware blocker.
🛠 How DBX Updates Work
DBX updates come from:
- Microsoft
- OEM firmware vendors (Dell, HP, Lenovo, etc.)
- Windows Update (as a platform security update)
A DBX update only revokes compromised bootloaders, such as:
- Old Linux shim loaders
- Vulnerable GRUB versions
- Signed malware
- Leaked certificates
DBX updates do NOT revoke Windows bootloaders.
If Microsoft revoked the Windows 10 bootloader certificate:
- Windows 10 would stop booting
- Windows 11 would stop booting
- Windows Server would stop booting
- Azure VMs would stop booting
- Enterprise systems worldwide would fail
This would be a global outage affecting governments, hospitals, banks, and infrastructure. Microsoft will never do this.
📜 History of DBX Updates (Past Behavior)
2020 — BootHole vulnerability
- Revoked vulnerable GRUB versions
- Did NOT revoke Windows bootloaders
- Windows 7, 8, 8.1, 10, 11 all continued to boot normally
2021–2023 — Additional Linux shim revocations
- Targeted compromised Linux bootloaders
- Did NOT affect Windows
2024–2025 — Routine Secure Boot updates
- Added new malware signatures
- Did NOT affect Windows
2026 — No advisory exists
There is no Microsoft advisory, no CVE, and no scheduled DBX update that targets Windows 10.
🧠 Why DBX Updates Cannot Disable Windows 10
To “disable” Windows 10 using the DBX, Microsoft would have to revoke:
- The Windows Boot Manager certificate
- The Windows Boot Loader certificate
- The Microsoft UEFI CA certificate
If they did this:
- Windows 11 would also stop booting
- Windows Server 2016/2019/2022 would stop booting
- Azure cloud infrastructure would collapse
- Enterprise systems would fail
- OEM firmware would break
- Millions of devices would brick
This is not how Secure Boot works and not how Microsoft operates. The DBX is a security list, not a kill switch.
❌ Why the YouTube Rumor Is Wrong
The YouTube claim that “Microsoft will update the DBX on June 24, 2026 to disable Windows 10” is fabricated.
There is:
- No Microsoft announcement
- No firmware bulletin
- No CVE
- No advisory
- No update scheduled
- No evidence
- No technical basis
The date is made up. The claim is impossible. The video is designed to farm views using fear.
🟢 What Windows 10 Users Should Expect
Even after Windows 10 support ends:
- Windows 10 will continue to boot normally
- Secure Boot will continue to function
- DBX updates will continue to protect against malware
- No DBX update will disable Windows 10
- No forced upgrade will occur through firmware
Your PC will remain fully functional.
✔ Final Summary
- The DBX is a malware revocation list, not an OS blocker
- DBX updates have never disabled any Windows version
- Microsoft cannot revoke Windows bootloaders without breaking Windows 11 and Server
- No DBX update is scheduled for June 24, 2026
- The YouTube rumor is false and technically impossible
- Windows 10 will continue to boot normally