Before you install PST Repair Tool have a look on the system requirements given here:
Processor: Pentium Class
Operating System: Microsoft Windows 7/Vista/2003/XP/2000/NT4 (SP6)
Memory: Minimum 256 MB (512 MB recommended)
Hard Disk: 50 MB of free disk space
MS Outlook: MS Outlook 2010/ 2007/2003/2002/2000
Internet Explorer: Version 5 or later
Steps to install PST Repair Tool are given here:
Step 1: Download PST Repair Tool. Install it with quick installation wizard. Follow the wizard to install the software on your system. Launch PST Repair Tool from the desktop shortcut. Now choose the corrupted PST file which you want to scan.
Step 2: In this step, click on Next and follow the instruction to complete it by clicking on the Start button in order to start the scanning process.
Step 3: When the scanning process gets completed, PST Repair Tool will show you the previews of all the recoverable components.
Step 4: You can view the lost folder in the recovered item list. Use the licensed key and save your lost PST files.
Steps To Uninstall PST Repair Tool are:
Step 1: Start your system and move to Control Panel.
Step 2: From Control Panel select Add or Remove Option.
Step 3: Remove or Uninstall PST Repair Tool.