Default Program for Opening .pst Files ?

Not open for further replies.


Outlook version
Email Account

Recently, while playing with the back-up and export function in my Outlook 2007 (on Windows 7), I backed up a folder as a .pst file. I was then going to try encrypting it to see how that function works within Outlook (not really knowing that much about it). Well, somehow with all my clickety-clicking I must've changed the default program for opening the files. They are now set to open with Word (which doesn't seem to work). And I forgot what the default program was for opening these files. It didn't seem to be the Outlook icon, as I recall.

I tried searching here and elsewhere online, but couldn't find what I'm looking for. So, I thought the simplest thing to do would be to ask.

Thanks for any assistance in getting these files restored to their default settings.:)
It doesn't matter what application is assigned to the pst file type. but you can change it with a right click on it and choose Open with... and you can select Outlook.exe but the pst files can't be opened by double clicking, you need to use File, Open, Outlook data file to open it.
Ah. Okay, thank you very much for that information. That relieves some of my anxiety. :) (My problem was that I was going to File > Data File Management, etc.)

I have changed it now to Outlook (instead of Word), but it's not the icon I originally saw on the various Outlook data files (AppData > Local > Microsoft > Outlook). I can't remember exactly what the default icon looked like nor what program it represented. :confused:

Anyway, I'm good to go now. Thanks for the comment !
In the registry - what does the (Default) value for HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.pst have? It should say PSTfile.

Find PSTFile key - HKEY_LOCAL_MACHINE\SOFTWARE\Classes\PSTFile\DefaultIcon - what is the default icon?

C:\PROGRA~1\MICROS~2\Office12\OUTLOOK.EXE,10 is used here. (The 10 is the key to the icon)

Except for my reg showing "PROGRA~2\MICROS~1" it's identical to what you suggest. So, since the '10' is the key, everything should be fine, even though it doesn't seem to be the same one I saw initially. Whatever. As long as I didn't do anything bad that will come back to haunt me later. :)
Nah, it won't haunt you, maybe annoy you every time you look at it. :) You could try resetting the icon cache - I probably wouldn't bother but it is an option.
Not open for further replies.
Similar threads
Thread starter Title Forum Replies Date
Diane Poremsky To Change the Default E-mail Program in Windows Using Outlook 0
R how to (re)set the default data file for Outlook in a VB program Outlook VBA and Custom Forms 2
J Outlook VBA to send from Non-default Account & Data Files Outlook VBA and Custom Forms 3
J Set calendar default to 'none' (policy) Exchange Server Administration 3
J Calendar events created on iPhone automatically changing default alert from 'None' to 'Time of Event' Using accounts in Outlook 0
P turn off the default "all day" check box in new calendar items. How? Using Outlook 1
A Outlook 365 New Appointments All saved to a 365 default calendar on Mac Using Outlook 0
D Outlook 2021 Using vba code to delete all my spamfolders not only the default one. Outlook VBA and Custom Forms 0
B Outlook 2019 Custom Email form - Edit default email form Outlook VBA and Custom Forms 6
W Outlook 365 I am getting the "Either there is no default mail client" error when I try to send an email on excel Office 365 Using Outlook 1
P Outlook 2016 Change Paste Special Default Format Using Outlook 8
Geldner Tweak Junk Email Reporting tool to default to particular email on send? Using Outlook 3
P default font when sending email from browser Using Outlook 1
nmanikrishnan Auto-reply from default account Using Outlook 1
E Default shape via VBA Outlook VBA and Custom Forms 4
A force outlook to default to MY calendar Using Outlook 3
F VBA to move email from Non Default folder to Sub folders as per details given in excel file Outlook VBA and Custom Forms 11
e_a_g_l_e_p_i Outlook 2010 How to set default email address for website links Using Outlook 3
V Accepted meetings do not get the default reminder Using Outlook 0
Fozzie Bear Accepted Zoom Invites deleting without going into Default Calendar - Office 2016 Mac Using Outlook 3
W September 2020 - No Default Email Client message after Office Update Using Outlook 1
G Add to Outlook Contacts - Point to non-default contacts folder Using Outlook 0
R How to get the Items object of the default mailbox of a specific account in a multiple account Outlook? Outlook VBA and Custom Forms 0
R Auto display of new email does not work on non-default account Outlook VBA and Custom Forms 0
E How to display "Change Folder" in Change Default Email Delivery Location in Exchange Outlook 2016 Using Outlook 1
F Default font for notes in contacts Using Outlook 1
S Outlook 2010 unable to change default font Using Outlook 7
O How come default profile changed? Using Outlook 2
N How to set automatically the default or user defined Quickstyle Templates by Answer in Outlook Using Outlook 1
W Message class changes of a custom form changes to the default form Using Outlook 2
T Outlook changes default account Using Outlook 1
P how to remove unwanted PST file default categories assigned to many calendar entries Using Outlook 7
P Reading Pane (Reading Pain?) Default Setting Using Outlook 1
A Add to Outlook Contacts from email - default view Outlook VBA and Custom Forms 1
P Making iCloud the default calendar for Outlook 2016 Using Outlook 3
M Outlook 2016: Changing default font for Notes and Reading Pane Using Outlook 4
V Change default default save location to Quick Access Using Outlook 1
V Changing default date for task follow-up buttons Using Outlook 2
C Change default "Save Sent Item To" folder Outlook VBA and Custom Forms 9
V VBA when replying + Default Account Using Outlook 2
P account overrules default account Using accounts in Outlook 8
P Outlook 2016 Not Default Client Using Outlook 5
D Add all meeting rooms to the meeting request by default Outlook VBA and Custom Forms 0
Mark White VBScript Move sent mail to non-default folder Outlook VBA and Custom Forms 5
Mark White VBScript Move sent mail to non-default folder Outlook VBA and Custom Forms 0
N How to delete default folder "Contacts" (olFolderContacts) in a .pst file Using Outlook 8
D Default Send Account that Works? Using Outlook 0
T Changing default Mail Account in Outlook 2016 - POP3 Using Outlook 1
J Setting default address book Using Outlook 0
V importing appointments to non-default calendar? Using Outlook 1

Similar threads