PST files don’t contain any valid data of the Outlook files, they are totally useless.
The recovery tool or expert doesn’t have enough expertise that it/he may collect some garbage data and save them as a file with. Due to the file system disaster, some parts of the original PST file are lost permanently, or overwritten by garbage data, which makes the final salvaged PST file incomplete or contain incorrect data. But in fact, sometimes when your file system is broken, and you try to hire a data recovery tool or expert to recover the PST files on it, the files recovered may still be corrupt, because: You may find it is unbelievable that a file system recovery may cause PST file corruptions. Software Reasons:Īlso many Outlook PST file corruptions occur due to software related issues. There are many techniques to prevent or minimize the Outlook PST file corruption due to hardware problems, for example, UPS can minimize the power failure problems, and using reliable hardware devices can also reduce the chances of data corruption. For example, if you unplug an external hard drive when copying a PST file to it, then the PST file will get corrupted. If a power failure happens when you are accessing the PST files, that may leave your damaged PST files. If the network interface cards, cables, routers, hubs and any other devices constituting the network links have problems, then the remote access of the PST file may make it corrupted. For example, the Outlook PST file resides on the network server, and you try to access it from a client computer, via network links. Or the data you read are incorrect and full of errors. Then maybe you can only read part of the PST data file. For example, if your hard drive has some bad sectors and your Outlook PST file is stored on these sectors. Whenever your hardware fails in storing or transferring the data of your MS Outlook PST files, the PST files will likely get corrupted. 
We classify them into two categories, i.e., hardware reasons and software reasons. There are so many reasons that will let your Outlook PST file corrupted or damaged.
Now, let’s discuss why the PST files will get corrupted.
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