TutorialWindows
How to Delete the Windows.old Folder to Free Up Disk Space
Remove the Windows.old folder safely using Storage settings, Disk Cleanup, or PowerShell, and reclaim 10 to 30 GB of disk space after a Windows upgrade.
#Windows 11
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NewsMicrosoft
Microsoft March 2026 Patch Tuesday: KB5075904 Fixes 47 Vulnerabilities in Windows 10 and 11
Microsoft released KB5075904 on March 11, 2026, the March Patch Tuesday cumulative update for Windows 10 and Windows 11. It patches 47 vulnerabilities including 8 critical CVEs, fixes Windows Hello errors, and improves network and memory performance.
NewsWindows Hotpatch
Microsoft Enables Windows Hotpatch by Default for Eligible Intune Devices
Starting with the May 2026 security update, Windows Autopatch enables hotpatch security updates by default for eligible Intune-managed (and Microsoft Graph) devices - applying monthly fixes without a restart. Tenant opt-out controls arrived April 1, 2026, with a grace period to May 11.
TutorialSecure Boot
How to Check if the Secure Boot 2023 Certificates Are Installed on Windows
Verify whether your Windows PC has the new Secure Boot 2023 certificates (Windows UEFI CA 2023, KEK 2K CA 2023) before the 2011 certificates start expiring in June 2026 - by reading the UEFI variables, the way Microsoft documents.