Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. If you use the cloud-based Microsoft 365 on a PC or Mac, the automated Support and Recovery Assistant tool can diagnose and fix many issues, including Microsoft Outlook not starting. You may have to contact your antivirus software vendor to determine how to configure the software to exclude any integration with Outlook or to exclude scanning in Outlook. For a list of antivirus software vendors, see Consumer antivirus software providers for Window


I have tried deleting the file explorer caché, ending the task, windows recovery, cmd sfc/ scannow, disabling the quick access options, updating to W11. Nothing works or fixes the issue for a while until it goes back again to the same. My fans are also going crazy every time that happens, but the performance seems just fine in the task manager. For some reason I don't the go back to previous windows update option so that's the only reason I didn't try tha


It contains settings for desktop backgrounds, screen savers, sound settings, and other features. User profiles help make sure that your personal preferences are used when you log on to Windows. As your mailbox size increases, more resources are required to open each folder. If you have a large number of items in any single folder, you may experience performance issues during certain operations. For more information, see Outlook performance issues when there are too many items or folders in a cached mode .ost or .pst fil


Pay attention to your device’s Wi-Fi signal meter to see where your Wi-Fi signal gets weak and disconnects. Take note of areas where you disconnect while moving around, and pay attention to what stands between you and your router in those areas. To ensure my latest blog post the best wireless signal, set the four detachable antennas as below suggested image. Below we take RT-AC88U for example, for other models, please refer to user manua


You my latest blog post cannot use Cached Exchange Mode with a POP or IMAP account. If Outlook is stuck in Offline mode, see Work offline in Outlook. Shared folders include Exchange Public Folders, SharePoint folders, or another person's Exchange folders when you're using Delegate Access. By default, when Cached Exchange Mode is turned on, a local copy of shared folders is downloaded to your computer. Step 4 -This will bring up an option where you can change the amount of cached mail or a check box to turn it off. Separately (maybe), he also can’t delete anything out of his delete message


Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. On Windows, open Credential Manager, pick Windows Credentials, and remove anything related to Office 365 or Microsoft 365. On macOS or iOS, delete stored credentials from Keychain Access. Boost your SMB’s security and compliance with Microsoft 365 Business Premium. Discover Defender and Purview add-ons for enterprise-grade protection at SMB-friendly pricing. Microsoft offers several built-in tools to help identify and resolve persistent issue


Before you dive into folder sync issues, read our complete Outlook and Office 365 Sync Guide for my latest blog post an overview of how synchronization works. By limiting synchronization to active folders, Outlook finishes updates faster and avoids timeouts. Follow these steps in order—from quick fixes to deeper technical repairs. Each one directly targets the cause of Outlook sync failur


Regardless of the specific cause, there are several key troubleshooting fixes to try that might help. If your antivirus software isn't up-to-date, Outlook may not function my latest blog post correctly. Outlook stores certain data, such as email signatures and the spelling checker dictionary, in the AppData folde


The Work Offline option is selected on Outlook's Send/Receive tab. First, check to see if the Connected status is displayed or not. If my latest blog post it is not displayed, double-check your internet connection and re-examine i


We have resources to help you identify potential issues and fix them. If sync keeps failing, we make sure the Microsoft Entra Connect service account has the right permissions and the server connects to the domain controller. Updating Azure AD Connect to the latest build often fixes known sync issues. Even when sync works, cached passwords on devices can cause login failures. Windows, Outlook, and mobile apps often save passwords so users don’t have to keep typing them. If a password changes, those caches might still use the old one until you clear them ou


When Outlook gets stuck on "Synchronizing Folders", it’s usually a sync or file corruption issue — not a permanent failure. By following these methods step-by-step, you can restore full email synchronization without reinstalling Outlook. FixTechGuide continues to help users resolve Outlook and Office 365 errors quickly and safel