If the issue persists, repeat the process and choose Online Repair. This process replaces damaged core files without removing your data or customizations. 21Vianet also expect customer to collaborate at reasonable level accordingly.

⃣ Reset Browser Cookies Cache

If your admin enabled Modern Authentication (MFA), try disabling it temporarily via Azure Active Directory → Properties. Alternatively, generate an app-specific password if using Outlook 2016 or older. This resets your authentication cache and forces a fresh token request.

Microsoft 365 Apps Crashing After Update — Step-by-Step Repair Guide

• If login issues are still persisting, our experts can assist you live via WhatsApp.
• When Office 365 search stops working after updates, it’s usually a minor indexing or cache issue — not a major fault.
• Stay tuned on FixTechGuide.com for more troubleshooting guides and expert fixes.
• Then open any Office app → File → Account → Update Options → Update Now to ensure both are synchronized.
• 2 Severity A is only available to customers who signed an advanced online service agreement with 21Vianet through a sales account manager.
• Outlook and Office 365 sync issues can be frustrating but are almost always fixable.

Follow each method step-by-step to ensure smooth performance and protect your work data. Stay tuned on FixTechGuide.com for more troubleshooting guides and expert fixes. The rebuild Outlook data file quickly type of support Microsoft provides for consumers depends on the product you’re calling about and if you have a productfor home or for business use. Anyone in your organization can quickly create documents, presentations, and worksheets within a single, unified app experience. Microsoft 365 Basic now comes with 100GB of cloud storage, secure photo and file storage, secure ad-free email, and technical support. The administrator is expected to provide initial assistance for the customer’s users.

? Fix Office 365 Login Issues on Mobile

21Vianet assigns a severity level to a case when it’s opened, based on an assessment of the issue type and customer impact. Examples of issue types and severity levels are shown in the following table. Authorized administrators can use the Microsoft 365 operated repair corrupted OST in Outlook by 21Vianet portal to submit service requests online and access support telephone numbers.

Step 2 – Update Outlook and Office 365

We provide instant guidance for update errors, installation failures, send/receive error 0x800CCC0E fix and Office activation issues. When Office 365 search stops working after updates, it’s usually a minor indexing or cache issue — not a major fault. Following the steps above should restore your search functionality quickly. For advanced troubleshooting, FixTechGuide offers remote support to restore performance and indexing accuracy for Outlook and other Office apps. Microsoft 365 crashes after updates can be frustrating, but these fixes will restore stability quickly.

Repair Outlook OST File Not Working in Office 365 – Complete Fix (

Outlook and Office 365 sync issues can be frustrating but are almost always fixable. Start with basic network checks, enable Cached Exchange Mode, and repair your data files if needed. For persistent problems, rebuild your Outlook profile or use FixTechGuide’s free diagnostic tools to automate detection of authentication and IMAP errors in seconds. The problem usually occurs due to authentication token mismatches, cached credentials, or browser session conflicts. In this guide, we’ll walk you through every step to fix Office 365 login problems on both Windows and the web version. If your Microsoft 365 suite keeps crashing or you can’t recover lost files, reach out for expert help right away.