Third Party Fundraising - How to Fix Outlook Login Loop & Reset Search Cache: Full Guide

How to Fix Outlook Login Loop & Reset Search Cache: Full Guide+1 844-886-3118 Breaking the Outlook Login Loop A login loop usually happens because of a "Token Mismatch" between your PC and the Microsoft 365 server.1. The "Account Disconnect" Method In 2026, Windows handles Office logins through the OS settings+1 844-886-3118 . If Outlook is looping, you need to "unstick" the account from Windows. Close Outlook. Go to Windows Settings > Accounts > Access work or school. Find the account giving you trouble and click Disconnect+1 844-886-3118. (Don't worry, your emails are safe on the server). Restart Outlook and sign in again. This forces a fresh, modern authentication token.2. Clear the "Identity" Registry Key If the loop persists, the identity cache in your registry might be corrupt. Press Win + R, type regedit, and hit Enter. Navigate to: HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Common\Identity Right-click the Identity folder and select Delete. Restart Outlook. It will recreate a clean identity key.Part 2: Resetting the Outlook Search Cache+1 844-886-3118 If Outlook says "No results found" or "Search performance is impacted," your index is likely broken. Here is how to perform a deep reset.1. Rebuild the Search Index+1 844-886-3118 This is the "standard" fix that forces Windows to re-read every email. In Outlook, go to File > Options > Search. Click Indexing Options > Advanced. Under the Index Settings tab, click Rebuild. Note: This can take several hours depending on your mailbox size. Keep Outlook open.2. Reset the OST File (The "Nuclear" Fix)+1 844-886-3118 If rebuilding the index doesn't work, the local data file (OST) itself is likely the culprit.+1 844-886-3118 Go to File > Account Settings > Account Settings. Click the Data Files tab. Select your account and click Open File Location. Close Outlook. Rename the .ost file to .ost.old. Restart Outlook. It will create a brand new+1 844-886-3118 file and re-download your mail, automatically creating a perfect search index. #OutlookFix #Microsoft365 #OutlookPassword #TechTips2026 #EmailTroubleshooting #Office365 #OutlookSearch #OutlookRefresh
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