Fix: Microsoft 365 Apps Won't Open on Windows
Microsoft 365 desktop apps won't open or crash on startup? Fix Word, Excel, and PowerPoint with repair, safe mode, and update steps.
Tag
fix
Fix CVE-2026-21509: Microsoft Office Security Bypass
Microsoft confirmed a high-risk security bypass vulnerability, CVE-2026-21509, which is currently being exploited. This flaw lets attackers get around Object Linking and Embedding (OLE) security.
Fix Windows Update and Microsoft Store Timeouts
Fix Windows Update and Microsoft Store timeout errors after the February 2026 Azure outage. Reset components and clear cache.
Fix Microsoft 365 "Something Went Wrong" Error | SaRA Cleanup
Sorry, something went wrong. Something happened on our end. Waiting a bit might help.
Fix CVE-2026-21509: Office OLE Security Bypass | Patch and Registry Fix
Microsoft recently identified a critical vulnerability, CVE-2026-21509, affecting several versions of Microsoft Office.
Fix CVE-2026-21509 - Office OLE Security Bypass | Emergency Update Required
Microsoft released an emergency security update for a vulnerability known as CVE-2026-21509.
Fix UNMOUNTABLE_BOOT_VOLUME (0xED) - Windows 11 Boot Loop After KB5074109
A security update is stopping Windows 11 from starting. The January 2026 update KB5074109 is causing boot failures on Windows 11 versions 24H2 and 25H2. This results in a black
Microsoft 365 Outage MO1221364 - Outlook, Teams, Defender Down | Status Update
Fix MO1221364 error in Microsoft 365, Outlook, Microsoft Defender, Microsoft Purview. Step-by-step solution to resolve this issue and get back to work.
Fix Dyld Error Message 1 - Microsoft 365 Crashes on Mac Launch | Complete Fix
When you install Microsoft 365 on a Mac, it should just work. But many users find Word, Excel, and PowerPoint crashing immediately at launch. The apps briefly open, then quit with a confusing dynamic linker error. Here's how to fix it.
Fix Activation Status Error - Microsoft 365 Won't Activate | Run the Troubleshooter
Microsoft 365 shows "Unlicensed Product" or activation errors. Sign out, clear credentials, repair Office, or run SaRA to fix.
Fix CVE-2026-21265 - Secure Boot Certificate Expiration Bypass | Apply January 2026 Patches
Deploy the 2023 Secure Boot certificates before the 2011 certificates expire in June 2026. Registry keys, scheduled task, and verification steps.
KB5002826/KB5002831/KB5002829: Office 2016 Breaks After Update
Microsoft's January 13, 2026 Patch Tuesday delivered three security updates for Office 2016 that are causing widespread issues for MSI-based installations. These updates patch critical remote code execution vulnerabilities (CVE-2026-20948, CVE-2026-20952, CVE-2026-20953)