Using Classic Outlook on Windows for personal email, calendar, and contact management
The two locations are not the same.
-
C:\Users\Danny\AppData\Local\Microsoft\... .ostis in the hidden AppData folder and is where Outlook normally stores cached .ost files for accounts like Hotmail. -
C:\Users\Danny\Documents\Outlook Filesis the default folder for .pst files (personal data files), not the hidden AppData location.
So C:\Users\Danny\AppData\Local\Microsoft\******@hotmail.com.ost is different from C:\Users\Danny\Documents\Outlook Files.
For an Outlook.com/Hotmail account, Outlook normally creates and manages the .ost file automatically. The recommended approach is to create a clean profile and let Outlook create a new .ost in the correct location, rather than trying to reuse the existing .ost.
To create a new profile and point it to a specific .ost location (workaround method):
- If reusing the existing .ost, first copy it to the folder where it should live for the new profile (or decide where the new .ost should be created).
- Open Control Panel → search for Mail → open Mail.
- Select Show Profiles.
- Select Add and give the new profile a name (for example,
Dan Outlook 22 April 26). - Let Outlook find and configure the Hotmail account, then select Next.
- When setup finishes, select Change account settings, then Next.
- In Server Settings, select More Settings.
- On the Advanced tab, select Outlook Data File Settings.
- Select Browse and navigate to the folder where the .ost file is (or where you want the new .ost created). If reusing the copied .ost, select it and choose Open. If creating a new .ost, browse to the desired folder, type a file name, and select Open so Outlook creates a new .ost there.
- Finish the account setup.
- Back in Control Panel → Mail, under Always use this profile, select the new profile and choose OK.
This ensures the new profile uses the .ost file in the location chosen, and confirms that the AppData path and Documents\Outlook Files path are different.
References:
- You can't change the location of the offline Outlook Data File (.ost) in Microsoft Outlook
- Create an Outlook profile
- I can’t start Microsoft Outlook or receive the error “Cannot start Microsoft Outlook. Cannot open the Outlook Window”
- Classic Outlook not responding, stuck at "Processing," stopped working, or freezes