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There may be times when you encounter an Outlook error with the following message: ‘Outlook Error: 0X800401d, an unknown Outlook error: 0X800401d’. This error usually occurs when the user tries to update from current Outlook version to a higher version say Outlook 2007 to Outlook 2010 or higher. Most users archive their email data in Outlook profile but are never aware of the size of archived data. They remain under the impression that their Outlook data extends to only 1.5 to 2.0 GB, which is their actual Outlook mails size, though in practice it may spread to more than 5 GB. However, during Outlook upgrade, the actual size of Outlook PST file is displayed including the size of current and archived data. When the user upgrades MS Outlook and imports the PST file, then the size of PST file creates the error code 0X800401d in Outlook.
There is no need to worry! If there is a problem, then there is a solution also. There are two means of correcting a problem – one with the do-it-yourself (DIY) manual method and second deploying a reliable DIY software. Since the size of PST file creates this error, it is unlikely that the error resolves with the manual process. However, there is no harm in putting a little extra effort.
As the error occurs due to the conflict in size of Outlook importable PST file when the user tries to import data from the old Outlook PST file to the updated Outlook version. In such a case, there are chances that the PST file gets corrupt and inaccessible, hence there is a need for:
Since compacting PST option is not available with Outlook Inbox Repair tool, the only option is to compact your PST File with your Outlook.
The PST file is compacted after performing the steps.
Scanpst.exe file is capable of repairing the corrupt Outlook PST files. Locate the utility and start the repair process.
May or may not repair the PST file as in some cases; the PST file gets corrupt beyond repair.
When a user encounters the following error: “Outlook Error: 0X800401d, an unknown Outlook error: 0X800401d” and that is due to corruption in PST File, then it is better resolved with Stellar Repair for Outlook Technician version. The software works to resolve the corruption in PST file using the following steps:
The Outlook PST Repair software repairs and splits the PST to import it directly into MS Outlook. You can also split the PST file for convenience. Alternately compact the repaired PST to avoid further chances of PST file corruption.
Archiving the PST file is always better to improve the PST performance, however in the process, the user is not able to assess the actual file size. The very first point for any user to prevent the PST file from corruption is to take backup. Backup is good because there is always a possibility of file recovery in case the original data becomes inaccessible. However, if the Outlook still becomes inaccessible due to ‘an unknown Outlook error: 0X800401d’ then resolve the error with Stellar Repair for Outlook Software Technician version.
Also Read:
How to fix Outlook Error: 0x800ccc0f?
Eric Simson is an Email Platform Consultant and is associated with Stellar Data Recovery from last 6 years. He writes about the latest technology tips and provides custom solutions related to MS Outlook, MS Exchange Server, Office 365, and many other Email Clients & Servers.
When I tried to upgrade MS Outlook 2007 version to MS Outlook 2016 version, I have faced below error:
This application failed to start because 0x8004011d Outlook was not found. Re-installing the application may fix this problem.
Please help.
You can fix this problem by using an inbuilt utility like Scanpst.exe owned by Microsoft. It will scan and repair corrupt PST file.
My Outlook problem get resolve by Stellar repair for Outlook tool. Excellent tool.
Thank you for providing your valuable feedback.
While accessing Microsoft Outlook facing this error message:
“Task Exchange Server reported error 0X8004011d: The server is not available. Contact your administrator if the condition persists”
Kindly suggest solution.
To fix the above-mentioned error, you need to reduce or compact Outlook PST file.
Error solved! But, this tool is not a freeware.
Yes!
It is a free demo to ensure the result in a preview mode.
I can suggest Stellar Repair for Outlooksoftware. Its free demo shows result in a preview mode.
I am getting this error when trying to connect Outlook 2016. Please suggest!