Download of SysTools PSTUPGRADE 2.5 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The actual developer of the program is SysTools Software.
The default filenames for the program's installer are PSTUPGRADE.exe, PSTUPGRADE2.0.exe or PSTUPGRADE2.0Full.exe etc. We recommend checking the downloaded files with any free antivirus. The program lies within Office Tools, more precisely Document management. This PC software works fine with 32-bit versions of Windows XP/Vista/7/8/10/11. The following versions: 2.0 and 1.0 are the most frequently downloaded ones by the program users.
From the developer:
SysTools Software offers simple yet powerful PST Conversion tool to convert Ansi PST to Unicode PST and Vice versa.
You may want to check out more software, such as SysTools Outlook Duplicates Remover, SysTools OST Viewer Pro+ or SysTools Excel to Outlook, which might be related to SysTools PSTUPGRADE.
Office Tools
General