While using Outlook, you may encounter some common Outlook issues and errors, which may create problems for users. We have discussed in detail the 10 most common Outlook errors and the possible solutions to fix them. However, when you attempt manual methods, they may cause corruption in your PST files. This kind of error usually indicates some issues on the disk where your Outlook PST file is located.

If you need to increase the number of this limit try the next resolution. The maximum number of recipients for an individual email through USNH IT mail servers is 300. Step 1 - Follow these instructions to uninstall your Office applications. If you manually type in the secondary connected account email address in the “From” field, the email is sent as “On behalf of” your primary Outlook.com account. You might need to set Windows Update to automatically download and install recommended updates.

The app might refuse Outlook repair support team to launch or crash at the splash screen. Sometimes, antivirus real-time scanning can slow Outlook down. Configure your antivirus software to exclude Outlook files or processes from real-time scans to avoid interference. The good news is that Outlook has a built-in tool to scan for corrupted files. You can also make PST files a smaller size that won’t corrupt as easily. The issue might be difficult to identify if you have multiple accounts and a long history with Office 365, Exchange, and Outlook.

Email problems can disrupt your workflow.This guide will help you fix common Outlook issues quickly. A lot of times, a user will click on something by accident and change their view and be unsure of how to get it back. Sometimes when a user tries to search in Outlook, it either returns incomplete results, or returns nothing at all, even if you can see the email normally. Most times, this is caused by a corrupted search index, which you can rebuild. Keep in mind this does take a while, and it’s usually best done after the user has left for the day. Sometimes you’ll open Outlook and then for no apparent reason, it will freeze or shut itself down.

We can say that you will likely need to reinstall your software and reconfigure the firewall settings. Often there is the option to add sites to a whitelist, and you can give more permissions to Outlook. The easiest way to find out if this is the problem is to temporarily disable your antivirus software and log in to Outlook as usual. If the prompts go away, you’ll know it was the antivirus software. There are a number of reasons this issue arises, which makes it even more infuriating.

The AppData folder hosts a lot of files, including bookmarks and cached pages. This might be slowing down or overriding other commands in Outlook. To disable this feature, you’ll need to edit the Windows Registry. It’s incredibly common to have Outlook crash because of a corrupted PST file. Updating your Outlook may conveniently solve the issues you’re experiencing. All you need to do is to check and install any updates for the app.

Solutions to Troubleshoot ‘Out of Memory or System Resources’ ErrorCheck Resource Usage. …Restart and Update Outlook. …Optimize System Resources for Outlook. …Find and Remove Faulty Add-ins from Outlook. …Increase the Size of the Memory Heap. …Rebuild the OST File.Apr 7, 2025

If you try to perform other actions while Outlook is in use, Outlook may not respond. Let the task in process finish its job before you try another action. Performance may be decreased if you use the Outlook AutoArchive feature or sync to Outlook with a mobile device. These steps are provided in a specific order based on commonality and complexity. If the troubleshooter can’t fix your issue, or if you’d like to fix it yourself, see the next section. Create your account and connect with a world of communities.

Sometimes you’ll open Outlook and Outlook repair support team then for no apparent reason, it will freeze or shut itself down. There are quite a few different causes for this, but one of the most common is a defective add-in. Here’s how to disable add-ins in Outlook even when it keeps crashing. This option could be useful if you constantly have to wait for Outlook to rebuild its data file when you restart. Outlook crashes are never good, but you do not have to face them unprepared.

Start classic Outlook in safe modeIn Windows 10, click Start.Type Outlook /safe, in the Search programs and files and then click OK.Close and re-open Outlook.If the issue is resolved, you can keep working, or if you have time, take the following steps to find out what COM Add-in is causing the problem.

If you’re still unable to send or receive email, read how to Fix Outlook.com email sync issues. Some customers may experience a delay when trying to create a new email address, or alias, for their Outlook.com account. None of the events or information was lost in the move to the new calendar.

If you can’t choose any of the menu options, type inside an email message, calendar event, or contact, Outlook may have frozen. There are three steps you can take to try to get Outlook working again. If you are having problems with Outlook, there are a few things we can help with to get you back to sending and receiving your email. A vast community of Microsoft Office365 users that are working together to support the product and others. If you are having issues sending email, this might be due to validation issues with your Microsoft Account. Some customers may not be able to see their Profile, Account or Sign Out options when selecting their picture on the top toolbar.