Exit Outlook, go to AppData, and manually delete cache folders. Newer Windows updates and builds like Windows 10/11 provide better compatibility solutions for Outlook loading issues with Outlook 2019 and Outlook 365. If your Outlook keeps freezing, despite all your effort, it’s time to bring in the professionals.

If so, wait a short time (usually two or three minutes) to see if Outlook starts working again. Shows contacts or contact lists depending on what you selected in the left pane. Select a contact or contact list to solutions for Outlook loading issues view details in the contact card on the right. You can also select multiple contacts—for example, to send an email to the selected contacts. Keep track of appointments, meetings, or any other event from anywhere.

"Unable to install this application because an application with the same identity is already install... If you can't open Outlook, or Outlook disappears or crashes, one of your add-ins may be to blame or solutions for Outlook loading issues you may need to update Outlook.

ProcedureExit Outlook.Open a Run dialog box. ...Type Outlook /safe, and then click OK.If the issue is fixed, click Options on the File menu, and then click Add-Ins.Select COM Add-ins, and then click Go.Click to clear all the check boxes in the list, and then click OK.Restart Outlook.Jun 25, 2025

If the check box is cleared, the service or startup program doesn't run when you restart the computer. To keep up with new viruses as they're created, antivirus software vendors periodically provide updates that you can download from the Internet. Download solutions for Outlook loading issues the latest updates by visiting your antivirus software vendor's website.

Use the classic Outlook startup troubleshooter to diagnose and fix several common classic Outlook for Windows issues for solutions for Outlook loading issues you. Follow the on-screen instructions to update your Office apps. Then, launch your Outlook app, and it should open without problems. Now, launch Outlook 2016 again and check if the issue persists or not, and if it does, you may follow up with other workarounds given below.

Here, we have compiled a couple of workarounds or quick methods using which the whole Outlook won’t open mess will fly away. Find solutions to common problems or get help from a support agent. If Outlook is NOT able to start in safe mode, then try the next proposed solution below, entitled Create a new Outlook profile.

We can diagnose and fix several common Outlook connectivity issues for you. If our automated tool can't fix your issue, or you'd like to fix it yourself, see the next section. Then, each item in your calendar folder is checked for known problems that can cause unexpected behavior, such as meetings that seem to be missing.

Here’s how to disable add-ins in Outlook even when it keeps crashing. This is intended as a general guide to some common errors and I may not be able to troubleshoot through this. We have multiple tools to help you automatically diagnose an issue, troubleshoot, and fix problems with Outlook. Under Calendars, My calendar is the default selection and displays the calendar in Month view. You can move forward or backward through calendar months using the arrows above the calendar. At the top of the message list, you can choose how you want to view the list.

In this case, you can either contact its vendor for assistance or simply choose another protection program. 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 file. 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.

Repair a profile in OutlookIn Outlook, choose File.Choose Account Settings >Account Settings.On the Email tab, choose your account (profile), and then choose Repair. ...Follow the prompts in the wizard, and when you're done, restart Outlook.

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. In this case, you’ll have to remove your app’s cache to resolve your issue.

You may have installed an add-in that’s causing problems with the app. Or, your PC may have a virus or malware infection, preventing your app from solutions for Outlook loading issues launching. For Outlook not opening problems, you can use Kernel Outlook PST Repair to fix the corrupt PST file and import it to restore mailbox items. This innovative Outlook PST recovery software repairs large PST files without compromising their integrity. The tool simplifies all your tasks related to Microsoft Outlook 2016.