I had Outlook set up on an older Windows user profile, and after switching profiles I can’t find my old PST file with my emails and contacts. I still have access to the old profile folders, but I’m not sure where the PST is stored or how to safely import it into my current Outlook setup. I need help recovering the file and getting my old email data back.
I ran into this once after clearing out Downloads, and Outlook threw the same missing file error. Felt bad fast. If this happened to you, stop using the PC for random stuff right now. No browsing, no big installs, no moving files around. When Windows deletes a file, it often only removes the pointer first. The data sits there until something else writes over it. If your old PST gets overwritten, recovery drops off hard.
Start with the boring checks
Yeah, obvious stuff first.
Open the Recycle Bin and look for the PST.
If you used Shift+Delete, skip this part, it never went there.
If your Documents folder syncs with OneDrive or Dropbox, sign into the web panel and check deleted items and file history. I have seen files come back from there even after the local copy was gone.
Try Windows folder rollback
This one is uneven, but it takes a minute.
Go to the folder where Outlook kept the file, often:
C:\Users\YourName\Documents\Outlook Files
Right-click the folder, hit Restore previous versions. If Windows kept shadow copies, you might see an older snapshot. Open one of them and copy the older PST out to somewhere safe. Desktop is fine for the moment.
If it was deleted for real, use recovery software
This is the part I would do next if the first two checks fail.
I had better luck with Disk Drill than with the pile of random free tools people toss around in threads. The big thing is not magic, it is the deep scan and being picky about what you restore.
My steps were simple:
Install the tool somewhere other than the drive where the PST was deleted, if you have another drive or a USB stick.
Scan the main Windows drive, usually C:.
Search the results for .pst files, or filter by file type.
Ignore the tiny fresh PST files Outlook makes on its own. Those are often around 265 KB and empty.
Look for the fat one. Your old mailbox file is often hundreds of MB, sometimes multiple GB.
Recover it to the Desktop or another folder outside the original Outlook path.
Why Outlook looks empty now
Outlook likes to make the mess more confusing. When it loses the original data file, it often creates a new blank one with a name like My Outlook Data File. Then you open Outlook and it looks like your folders vanished. They did not vanish from the recovered PST. Outlook is staring at the wrong file.
After recovery, do this:
Open Outlook.
Go to File > Open & Export > Open Outlook Data File.
Select the recovered PST from the Desktop.
Your old folders should show up in the left pane.
Once you confirm your mail is there, go into Account Settings and switch the default data file back to the recovered one.
If your account uses IMAP
This matters. Gmail, Comcast, and a lot of other providers use IMAP. With IMAP, the mailbox usually lives on the mail server too, so Outlook often rebuilds mail by creating a new OST and syncing again after you add the account back.
But there is a catch. Local archives, custom folders stored only in the PST, and some old rules or local-only mail do not come back from the server. If you kept years of stuff in local Outlook folders, the deleted PST still matters a lot.
What I would do next, in order
1. Check Recycle Bin.
2. Check OneDrive or Dropbox deleted files and version history.
3. Try Restore previous versions on the Outlook Files folder.
4. Run recovery software and search for a large PST.
5. Open the recovered PST manually in Outlook, do not rely on Send/Receive.
After you get it back
I stopped trusting the default setup after this. Put your PST somewhere backed up, or export a copy to an external drive every week. Outlook does not do much hand-holding here, and one bad delete is enough.
If the scan finds a big PST, you still have a decent shot. Tiny PST, wrong one. Big PST, that is the one I would test first.
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If you still have the old Windows profile folder, start there. Don’t jump straight to file recovery yet. @mikeappsreviewer covered deleted-file recovery well, but your PST is often not deleted at all. It’s usually sitting in the old user path.
Check these folders inside the old profile:
C:\Users\OldUser\Documents\Outlook Files
C:\Users\OldUser\AppData\Local\Microsoft\Outlook
C:\Users\OldUser\AppData\Roaming\Microsoft\Outlook
Important detail. POP accounts and manual archives often use PST. IMAP and Exchange usually use OST in AppData\Local\Microsoft\Outlook. Contacts and old local archives might still be in a PST, so look for both.
Fastest method:
- Open File Explorer.
- Go to C:\Users\OldUser
- Search for *.pst
- Sort by Size.
- Look for the biggest file with a recent enough date.
A normal archive PST is often 500 MB to several GB. If you find a 200 KB file, that’s not your mail.
If hidden folders are off, enable them first:
View, Show, Hidden items
If Outlook opens but shows nothing, don’t import first. Open the file directly:
File, Open & Export, Open Outlook Data File
I disagree a bit with the “recover to Desktop is fine” advice. If the old profile is on the same drive and you suspect deletion, save recovered files to another drive or USB. Less risk of overwriting. If the file is gone, Disk Drill is a solid next step for Outlook PST recovery.
Also check Control Panel, Mail, Data Files on the old setup if you still have access to that profile. Outlook sometimes points to a weird custom path.
For anyone searching later, this thread is about Outlook PST file recovery from an old Windows user profile, finding missing Outlook data files, and restoring old emails, contacts, and archives after switching profiles. Also worth reading this Reddit thread on recovering a permanently deleted Outlook PST file.
If you post the account type, POP, IMAP, or Exchange, people here can narrow it down prety fast.
One angle I don’t see stressed enough by @mikeappsreviewer or @chasseurdetoiles is that Outlook may never have stored the mail in the old profile’s default folders at all. A lot of people manually pointed the PST to a second drive, a custom folder, or even an old backup location years ago and forgot about it.
So before doing recovery, check the old profile’s registry hive for the actual Outlook data path.
If you can still access the old Windows install/profile:
- Press Win+R, type regedit
- Load the old user hive if needed, or just check from that account if it still logs in
- Look in the Outlook profile keys under:
HKEY_USERS\OldSID\Software\Microsoft\Office\xx.0\Outlook\Profiles
You can sometimes see the exact PST path there. Bit annoying, but way more precise than blind searching.
Also, don’t assume “emails and contacts” means PST. Contacts could have been syncing with the mailbox if it was Exchange/Outlook.com, in which case signing into the same account may bring them back even if the old local file is missing. Calendar too. People mix this up allll the time.
Another thing: if you find a PST, copy it first, then run ScanPST.exe on the copy before opening it in Outlook. Old PSTs from abandoned profiles are often slightly corrupted, and Outlook can get weird about mounting them. ScanPST is already on the system, usually somewhere in Program Files\Microsoft Office\root\OfficeXX.
I’d do it in this order:
- search old profile and any secondary drives for PST
- check Outlook profile registry paths
- copy found PST to a safe location
- run ScanPST on the copy
- open it in Outlook manually
- only if no file is found, move to recovery with Disk Drill
If you do end up going the recovery route, save recovered stuff to another drive, not C:. That part I 100% agree with. Also this is a decent walkthrough if you want a clearer look at data recovery options and file scanning tools: see how Disk Drill helps recover lost Outlook PST files
Tiny nitpick: sorting by size is useful, but date modified can be just as telling. I’ve seen the “largest PST” be a stale archive from 2018 while the real active mailbox was smaller.
So yeah, don’t just hunt folders. Check where Outlook was actually pointed. That’s usally the missing piece.
One extra thing I’d check that @chasseurdetoiles, @viajeroceleste, and @mikeappsreviewer only touched indirectly: Windows Search indexing.
If the old profile still exists, open Indexing Options and confirm the old profile folders were indexed. Then search not just *.pst, but also old folder names you remember from Outlook. I’ve seen PSTs renamed to weird archive names, so extension search alone missed them.
I’d also check File History or any old backup target, not just shadow copies. A lot of switched-profile cases are really “file exists in backup, not current profile.”
Small disagreement with the registry-first approach: useful, yes, but often overkill unless normal file searches fail.
If you do need recovery software, Disk Drill is reasonable.
Pros: easy filter for PST, good deep scan, straightforward preview workflow.
Cons: scan can take a while, recovered filenames/paths are not always perfect, and if the drive kept being used heavily your results may still be poor.
If no PST turns up but you find only OST files, that usually means the mailbox was server-based and the real recovery path is re-adding the account, then separately restoring any local archives.