Social forum

 
 
Picture of Cexoy67719 cexoy
Unable to Backup PST File Due to Large File Size: Any Fix?
by Cexoy67719 cexoy - Monday, 27 October 2025, 1:44 AM
 

I am facing an issue while trying to back up my Outlook PST file. The problem is that my PST file has become too large, and Outlook keeps giving errors or freezing whenever I try to back it up. The file size seems to be near or over the 50GB limit. Has anyone else experienced this issue? What are the best ways to fix or reduce the size of an oversized PST file so I can successfully create a backup? I am looking for reliable methods--manual or using any trustworthy tools--to compress the PST file without losing any data. 

Picture of Natha Ncook
Re: Unable to Backup PST File Due to Large File Size: Any Fix?
by Natha Ncook - Monday, 27 October 2025, 2:10 AM
 

If you're trying to back up your PST file in Outlook and encountering a "Large File Size" error, you're not alone. Many users encounter this problem when their PST file exceeds Outlook's size limit. If your Outlook PST file has become too large, Softaken Compress PST Software is the best solution. This tool easily compresses large PST files without any data loss.

Key Features:

  • Compress PST without Outlook installed
  • Option to save attachments separately
  • Supports both ANSI and UNICODE PST files
  • Compatible with all MS Outlook versions