PST File in MS Outlook is susceptible to damage due to various agents like server problem, hardware and software errors, bugs in the system, operating system freezing etc. Sometimes when we try to access the data that is stored in the PST file, the Outlook denies our access to it and displays error messages like corruption in the file etc. In that a situation, accessing the data becomes virtually impossible. Moreover when we examine the specified PST file, the database shows 0KB memory space.
Now the question arises that how come the memory capacity of the PST file is reduced to 0Kb when there is so much of data stuffed in the PST file. The main reason behind this mess is that of the unsuccessful chkdsk command attempts like relocating and reindexing.
In order to fix this 0KB memory size issue of the PST file, there is an inbuilt utility tool in Outlook called Inbox Repair Tool. This tool can help you in fixing this loss of memory issue and will repair your damaged PST files. The first thing that needs to be done is to locate this tool in Outlook; whatever version you are using. For those people who are unable to locate the Inbox Repair Tool in Outlook, can locate this tool in the following ways:
C Drive: //Program Files\Common Files\System\MSMAPI\1033
Or
C Drive: //Program Files\Common Files\System\MAPI\1033
For those people who are using MS Outlook 2007 can locate the Inbox Repair Tool in the following way: C Drive: //Program Files\Microsoft Office\Office12 .
After when you have located the tool, open the Inbox Repair Tool by double clicking on it and then type the name of the PST file which is showing 0KB and then specify its path. Click on the begin button for the tool to fix the issue. In some cases, the problem is not sorted by using this tool and the problem still persists. The reason being the PST file is damaged to such an extent that the Inbox Repair Tool is unable to fix the issues. In that a situation, 3 rd party application tool like Outlook PST Repair can help in getting rid of the problem by automatically repairing the damaged PST file using certain scanning methods.