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 your Outlook hangs up, it might take another close/reopen. See work, group, and personal calendars with ease, wherever you want to be. Note that you can quickly tell how your mail is currently sorted, by the presence of a small triangle on the field headers. Please install the Windows 10 Fall Creators Update to fix this issue.
Now, check if ‘Something is wrong with one of https://fixoutlookhelp.wordpress.com/2025/10/29/repair-outlook-ost-and-pst-files-2025-guide/ your data files and Outlook needs to close’ is solved. The Inbox Repair Tool is an in-built utility from Microsoft to overcome the Outlook PST file corruption issues. Users can fix Outlook PST files using this utility, but firstly you need to locate the Inbox Repair Tool (ScanPST.exe) in their system. We are going to share a table below with the default location of this utility for different Outlook versions, like Outlook 2010, 2013, or 2019. In earlier versions of Outlook, we previously recommended that you use the Scanost.exe tool for errors that occur with your offline Outlook Data File (.ost).
For more information, see Introduction to Outlook Data Files (.pst and .ost). You can determine if it's corrupted by creating a new profile and changing which profile is used when Outlook https://fixoutlookhelp.wordpress.com/2025/10/29/repair-outlook-ost-and-pst-files-2025-guide/ starts. If Outlook is NOT able to start in safe mode, then try the next proposed solution below, entitled Create a new Outlook profile. Starting Outlook in safe mode, which starts Outlook without add-ins loaded, can tell you if an add-in is the source of the problem. If you are trapped in a similar situation that my Outlook is not opening, you may feel disturbed about the problem. In the following post, you will find out solutions for the common Outlook not opening problems bonus tips to prevent the problem from happening again.
Start typing in the search box to find a contact or contact list. Right-click an existing folder and select Create new subfolder. Calendar events can be used for your own personal event, or you can invite others to create an in-person or Teams meeting.
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. However, if you encountered other issues like Outlook not responding, learn how to fix Outlook not responding here. Click the above link to have a quick download, then you can have Outlook errors fixed within minutes. Check the solutions to fix "Outlook not opening" problem and how to avoid "Outlook won't open" again. Here are some common fixes that should work when Outlook doesn't open, whether you're using Windows or a Mac.
Find solutions to common problems or get help from https://fixoutlookhelp.wordpress.com/2025/10/29/repair Outlook data file (https://fixoutlookhelp.wordpress.com/2025/10/29/repair-outlook-ost-and-pst-files-2025-guide/)-outlook-ost-and-pst-files-2025-guide/ 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. Outlook may be running with settings meant for an older Windows version. For more detailed instruction on how to enable or disable add-ins see this Quick Tip.If you you get an error that you cannot disable the add-in see this Quick Tip instead. The "Cannot open the Outlook window" error can be fixed quite easily. If you share this computer with another user, you can ask this other user to logon and ask to verify if Outlook is still working for him or her.
Get Help has troubleshooters for classic Outlook for Windows you can run for many common scenarios, such as Outlook startup or profile setup problems. These often help resolve issues without the need to contact support. To import contacts from other email services, export contacts, or clean up duplicate contacts, select an option from the Manage contacts menu. You can view more than one calendar at a time, add other calendars, choose which calendar to display, https://fixoutlookhelp.wordpress.com/2025/10/29/repair-outlook-ost-and-pst-files-2025-guide/ and create new calendars. When you try to accept a shared Outlook.com calendar using your Microsoft 365 for business account in Outlook 2016, you might receive the "Something went wrong" error or your sign-in might fail. Some customers may not be able to see their Profile, Account or Sign Out options when selecting their picture on the top toolbar.
The problem of "Outlook Not Opening in Windows 10" happens for different reasons. In short, it means that sometimes Outlook doesn’t start or work right. Knowing why this happens is necessary as we can find ways to fix it properly. 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 can all be done in the background.
These pop-up messages can sometimes make Outlook Not Opening in Windows 10 error. As a result, if Outlook seems stuck or not responding, check any open pop-up messages on your screen. To check for these messages, press Alt+Tab on your keyboard. It will help you switch between windows and see if any pop-ups need attention. Here's the deal, when Outlook manages to open, all the files you delete will automatically be recreated. It gets better because you also resolve all the Outlook opening issues.