From 3d7aefaa4039cb82397f1f701668ac8efcd76c7b Mon Sep 17 00:00:00 2001 From: Leigh Crofts Date: Mon, 6 Oct 2025 10:20:01 +0800 Subject: [PATCH] Add 'Outlook won't open on my Windows 10 PC have Microsoft 365 and do the Repair and restart but it doesn't work except occasionally if I "Run as administrator" it will open but then will stop working Microsoft Q&A' --- ...open-but-then-will-stop-working-Microsoft-Q%26A.md | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 Outlook-won%27t-open-on-my-Windows-10-PC-have-Microsoft-365-and-do-the-Repair-and-restart-but-it-doesn%27t-work-except-occasionally-if-I-%22Run-as-administrator%22-it-will-open-but-then-will-stop-working-Microsoft-Q%26A.md diff --git a/Outlook-won%27t-open-on-my-Windows-10-PC-have-Microsoft-365-and-do-the-Repair-and-restart-but-it-doesn%27t-work-except-occasionally-if-I-%22Run-as-administrator%22-it-will-open-but-then-will-stop-working-Microsoft-Q%26A.md b/Outlook-won%27t-open-on-my-Windows-10-PC-have-Microsoft-365-and-do-the-Repair-and-restart-but-it-doesn%27t-work-except-occasionally-if-I-%22Run-as-administrator%22-it-will-open-but-then-will-stop-working-Microsoft-Q%26A.md new file mode 100644 index 0000000..56b8b64 --- /dev/null +++ b/Outlook-won%27t-open-on-my-Windows-10-PC-have-Microsoft-365-and-do-the-Repair-and-restart-but-it-doesn%27t-work-except-occasionally-if-I-%22Run-as-administrator%22-it-will-open-but-then-will-stop-working-Microsoft-Q%26A.md @@ -0,0 +1,19 @@ +If you can't open Outlook, or Outlook disappears or crashes, one of your add-ins may be to blame or you may need to update Outlook. If the troubleshooter can't fix your issue, or if you'd like to fix it yourself, see the next section. + +I recently uninstalled and reinstalled Office but it only made the issue worse. To create a user profile, you must first create a user account. When the new account is created, a profile is also created. To determine whether this problem is caused by a corrupted user profile, create a user profile to see whether the problem still occurs when you use the new profile. To keep up with new viruses as they're created, antivirus software vendors periodically provide updates that you can download from the Internet. + +If you’re still having problems, you can try resetting your Windows Firewall settings back to default. Once the add-ins are disabled, close Outlook 2016 and restart the application normally to check whether it now opens as normal or not. You can determine if it's corrupted by creating a new profile and changing which profile is used when Outlook starts. + +The good news is that most "Outlook won’t open" errors can be resolved with a few proven troubleshooting steps. When you install Office, an Inbox Repair Tool (SCANSPST.EXE) is also installed on your PC. The Inbox Repair Tool can resolve issues by scanning your Outlook data files and repairing errors. + +Pressing Alt+Tab will help you switch from window to window and help you see what dialog boxes might be stopping Outlook from [easy fixes for Outlook errors](https://sites.google.com/view/fixoutlookstuckonloadingprofil/home) responding. These troubleshooting techniques apply to Outlook 2016 and 2011 for Mac. The navigation pane, which typically displays your Inbox, Sent Items, and other folders on the left sidebar, can sometimes become corrupted. A simple reset often resolves this and allows Outlook to open correctly. Sometimes, extra tools, ‘add-ins’ in Outlook, can make things tricky. They’re like helpful accessories, but sometimes they can cause trouble. + +If you can't open Outlook, or Outlook disappears or crashes, one of your add-ins may be to blame or you may need to update Outlook. This write-up is to help you get out of such a scene and get things back to normal as before with Outlook 2016 (and other recent versions too). Here, we have compiled a couple of workarounds or quick methods using which the whole Outlook won’t open mess will fly away. If Outlook is NOT able to start in safe mode, then try the next proposed solution below, entitled Create a new easy fixes for Outlook errors Outlook profile. Use the classic Outlook startup troubleshooter to diagnose and fix several common classic Outlook for Windows issues for you. Sometimes, Outlook fails to open when it can’t load your view settings in the app. + +Outlook stores all your email messages, meetings and events, contacts, and tasks in data files. You can run the Inbox Repair Tool (scanpst.exe) to scan your Outlook data files and repair errors. Outlook caches various files to speed up your app experience. When you have issues with the app, it’s likely the app’s cached files are corrupted. + +Outlook.com (the web version of Outlook) and Outlook apps require a 1st party alias (Outlook/Hotmail/Live/MSN) to send and receive email, use calendar, etc. Occasionally, classic Outlook tries to run a process in the background. Auto-archive, sending and receiving a very large attachment, or running some of the other mailbox tools easy fixes for Outlook errors can all be done in the background. Check the status bar at the bottom of the screen to see if another process is running. If so, wait a short time (usually two or three minutes) to see if Outlook starts working again. + +Listed below are a few methods and solutions you can use to solve this Microsoft Outlook issue. In case these solutions do not work for you, you can use our repair tool to fix the problem and restore the items back to their original state. When a Microsoft Office app, like Outlook, stops working, use Office’s built-in repair tool to fix your app. Microsoft includes this tool with all Office easy fixes for Outlook errors installations, and you can use it to find and resolve problems with all your Office applications. Wait for the antivirus to scan your system, find any viruses, and remove those items. Since several different problems can cause Outlook not to open, you may have to try multiple fixes before your issue is resolved. + +If you're having problems sending or receiving email, read how to Fix Outlook.com email sync issues. The maximum number of recipients for an individual email through USNH IT mail servers is 300. If you try to send to more than 300 recipients in a single send, you will get an error similar to "This message wasn't delivered to anyone because there are too many recipients. The limit is 300." No matter how well written add-ins are (and even Outlook itself), there will always be the occasional Outlook problem that doesn’t seem to go away or may not be related to add-ins at all. You can read how to fix your Outlook problem on the internet, but sometimes the suggestions don’t work for your specific case. \ No newline at end of file