SysTools PST Upgrade

Tool to Convert Outlook Unicode PST to ANSI PST & ANSI PST to UNICODE PST File Format

  • Upgrade MS Outlook PST Files from ANSI PST to UNICODE PST Format
  • Downgrade PST Files format from UNICODE PST to ANSI PST File Format
  • Convert Emails, contacts, calendars, tasks, notes, journals & all items
  • Supports Batch Conversion : Upgrade or Downgrade multiple files at once
  • No 2GB PST File Issue: Create an entirely new & healthy PST File
  • MS Outlook Installation is Necessary to perform the conversion

List of All Key Features Present within SysTools PST Upgrade Software

convert ansi pst to unicode pst


MS Outlook PST file upgradation can be done in batch using the PST Upgrade tool. This program allows you to convert PST file of MS Outlook 2000 / 2002 format into newer MS Outlook versions of PST files i.e. 2003 / 2007 / 2010 which are in UNICODE format.

convert unicode pst to ansi pst


If you are using MS Outlook 2010 / 2007 / 2003 then the default PST file format will be UNICODE. In order to use such a PST file in older Outlook versions like: MS Outlook 2000 / 2002 you need to downgrade UNICODE PST to ANSI PST format.

complete conversion

Complete PST Conversion Tool

Both Upgrading and downgrading of PST files will create a new PST of either ANSI or UNICODE type. And these, PST files will have all the items from the source PST file namely: emails, contacts, calendars, tasks, notes, journals etc. You will not lose any data or information during this conversion.

batch conversion

Batch Conversion of PST Files

Software allows you to add multiple PST files or add folder having multiple PST files. In this way, you can export multiple Outlook PST files altogether. Also, there is a button available to directly remove any PST file from being upgraded or downgraded.

support ansi or unicode format

Support ANSI & UNICODE Format

Software supports ANSI as well as Unicode PST files. But if you provide a UNICODE PST while upgrading PST or an ANSI PST while downgrading PST then faulty results will be received. In both cases, due to the selection of a wrong PST software will generate an alert message reporting about the same.

convert or save pst file

Convert & Save PST File

After converting PST, you can save the file at any desirable location on the conversion machine or an external storage device attached to it. It is also possible to create a new folder from software panel itself and save the data into it. This will help you manage upgraded PST files more easily.

PST Upgrade Tool Screenshots

pst upgrade tool
Step 1: Software Screenshot
add pst files
Step 2: Add File(s) or Folder
select format
Step 3: Select Format
upgrade pst file
Step 4: Upgrade PST Files

Watch Live Video of PST Upgrade Tool

Download PST Upgrade Software

PST Upgrade Box

Size: 3.0 MB Version: 2.5


Trial Limitations

Trial version of PST Upgrade software upgrade or downgrade first 15 emails from each Outlook folder present in PST file.

Download PST Upgrade

Installation Uninstallation EULA

System Specifications

System Specifications
  • Hard Disk Space: 15 MB of free hard disk space
Frequently Asked Question

Is software compatible with Windows 8 environment?

Yes, software is now compatible with Windows 10, 8 and older versions.

How many PST files can I upgrade at once?

You can upgrade multiple PST files in one go. You can add multiple files by Add Files option or you can also add a folder containing multiple PST files by Add Folder option.

Does software require Outlook installation for proper functioning?

Yes, Outlook installation is a must to use PST Upgrade. Outlook 2003 or above version should be installed and configured properly while upgrading PST from ANSI to UNICODE format.

Is it possible to convert UNICODE PST to ANSI PST with this software?

Yes, software has both features; ANSI to UNICODE as well as UNICODE to ANSI.

Does "SysTools PST Upgrade" preserve metadata and folder structure?

Yes, software preserves all the Meta data, properties and folder structure while upgrading as well as downgrading PST files.

Does the software access password protected PST file?
I have an old ANSI PST file which is password protected but I don't remember its password. Will PST Upgrade help me upgrade it to UNICODE format?

Software prompts for password as soon as you browse a password protected PST file. If you don't have its password then you will not be able to proceed further. You have to remove password protection from PST File.

Can I upgrade a corrupt PST to remove its corruption?
My PST file is not accessible due to crossing 2GB file size limitation. Can I still upgrade it and make it accessible all over again?

No, software upgrades only healthy PST files which can be accessed in Outlook properly. If your PST is corrupted or inaccessible then you can use SysTools Outlook Recovery which removes all types of corruption issues.

How much time does software take to upgrade/downgrade Outlook Data file?

Software is composed of very advanced algorithms to upgrade ANSI PST to Unicode PST & Unicode PST to ANSI PST and thus performs processing very quickly

What Clients Say
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Get an Overview of PST Upgrade Features - DEMO and Licensed Version

Features DEMO Version FULL Version
Add Outlook PST Files
Add PST Files Folder
Windows 10, 8 & All Other Previous Windows Version Supported
Outlook 2016 & All Previous Version of MS Outlook Support
Browse Destination Location
Upgrade or Downgrade PST Files First 15 Emails / Folder All Items
Cost FREE $49
SysTools PST Upgrade Order Now
Full Version



SysTools PST Upgrade






OFFER Valid Till 31st Aug

PST Upgrade + Outlook Recovery+ PST Password Remover




$147   $89

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Note: The final price of software may be subject to sales tax depending upon your residence. The "Estimated Sales Tax" is displayed at the time of Check Out when you confirm the order.

Software will get delivered on your registered email id, within 15 minutes after placing the order.

We Accept All Major Credit Cards along with PayPal Account


amazon        CR        NSIC         CIO       BBB
License Information Personal License Business License Enterprise License
File Limitation Upgrade Unlimited Outlook PST Files Upgrade Unlimited Outlook PST Files Upgrade Unlimited Outlook PST Files
Bulk Conversion Support
24×7 Technical Support Unlimited Unlimited Unlimited
Free Product Updates
30 Day Money Back Yes, Money is refundable Yes, Money is refundable Yes, Money is refundable
Features in Demoware & Commercial License

An Overview At The Contrast between Trial & Purchase License

PST Upgrade DEMO Version FULL Version Bundle Offer
Add Outlook PST File
Preview Add PST File
Upgrade Unicode to ANSI
Degrade ANSI to Unicode
Outlook Recovery
Add Outlook PST File
Preview PST File components
Quick and Advance Scanning Mode
Export Outlook File to PST, EML or MSG
Frequently Asked Questions

Listed Commonly Asked Questions and Answers