Sudden System Shutdown due to Power Loss: If a power loss occurs, causing the system to shut down suddenly then the PST files that were open at the moment can get corrupted.įree Download Stellar PST recovery software.This causes the PST files to close suddenly which can lead to their corruption. One of the instances, when this happens, is when Task Manager is used for shutting down MS Outlook. Abnormal Closing Down of MS Outlook: If you are not careful in closing down the MS Outlook software then again corruption of PST files can occur.They can cause a great deal of damage to the PST files too and can cause them to corrupt as well.

Presence of Viruses: Viruses are a major threat to all the files present on the system.If your hard disk has bad sectors then there is a chance that your PST files will get corrupted quite often. These bad sectors are spots on the hard disk that can corrupt PST files if they get stored on them. Issues with Hard Disk: The hard disk where the PST files are stored is vulnerable to bad sectors.

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