When MS Outlook is used to receive confidential and business important mails, PST (Personal Storage Table) password protection feature can add to its data security. Unlike other email client information files, PST is the single file that centrally stores all email messages, contacts, notes, calendar entries etc. So, it becomes quite convenient to access the data. We can set a password to avoid external intrusion. The PST password may get lost or forgotten. This is the time when PST Password Recovery is required. Also due to a drawback of PST upgrading utility - pst19upg.exe, it is also possible to remove PST password in such cases.

Removing PST Password

In order to make PST compatible with Outlook’s later versions, Microsoft provides a utility called pst19upg.exe. The process requires free space of about three times the size of the original PST. The file should be backed up first and scanned using scanpst.exe. Then pst19upg.exe can be used on file through command prompt as:

"C:My Documentspst19upg.exe" -x outlook.pst.

Note: pst19upg.exe full path may vary

A copy of PST is created but with extension .psx. We can then rename the original PST and use "C:My Documentspst19upg.exe"-i filename.psx to get the password free PST. We can scan it and open it in Outlook for use. The utility has two basic limitations: It doesn’t support Unicode format of Outlook 2003 and 2007 and secondly, it may fail in several cases.

PST Password Recovery

Outlook Password Recovery is possible because storing technique for PST password allows password recovery using special utilities. Outlook uses 32-bit hash value to store the password that can be generated using CRC32 (Cyclic Redundancy Check32) algorithm. Thus any value that can match the corresponding CRC value can be used to open the locked PST. Commercial PST Password Recovery programs make it feasible to get these matching set of passwords. Thus we need not decode it and carry out the complex procedure that is complex. These Outlook Password Recovery programs give interactive interface and are safe due to their read-only nature.

Stellar Phoenix Outlook PST Repair is high end PST Password Recover software. Stellar has designed this application to recover lost or missing PST password in any case along with intuitive interface. This Outlook Password Recovery application gives a set of new passwords to access PST. The application can also repair PST and split a large PST file into smaller ones.