I accidentally deleted an Outlook PST file from my Documents folder while cleaning up old files, and now I can’t access important emails, contacts, and archived messages. I’ve already checked the Recycle Bin and searched my PC, but the PST file is still missing. I really need help with PST file recovery because this data is important for work and I’m not sure what to try next.
Missing PST file, what I checked first and what worked
Losing track of a PST file feels bad fast. I had Outlook open, then folders vanished, and my first thought was, great, all of it is gone. Sometimes the file is gone for real. Sometimes Windows only marked the space as free and the data is still sitting there.
First thing I did was stop using the PC for anything else. This matters more than people think. When Windows deletes a file, it often removes the pointer first. The file data might stay on disk until new data lands over it. If you keep browsing, installing random tools, moving files around, you lower your odds.
Start with the obvious stuff
I checked the Recycle Bin before doing anything fancy.
If you deleted the PST with the normal Delete key, it might still be there. If you used Shift+Delete, skip this part, it usually won’t show up there.
I also checked sync services. If your Outlook files folder was inside OneDrive, Dropbox, or something similar, open the service in a browser and look in deleted items, trash, and file history. I’ve seen local deletions where the cloud copy was still sitting there untouched.
Check old folder snapshots in Windows
This one gets missed a lot.
Go to the folder where the PST used to live. Common path:
C:\Users\YourName\Documents\Outlook Files
Right-click the folder. Choose Restore previous versions.
If Windows shows an older snapshot, open one from before the file disappeared. Then copy the PST out to a safe place. Do not restore over live files yet. I’d copy first, then inspect.
If it still isn’t there, use recovery software
At this point I treated it like a proper deletion.
From Windows’ side, the file was gone. File recovery tools are the next move. I’ve seen people use Disk Drill for this because it scans for deleted files, including PST files no longer visible in File Explorer.
A few things matter here:
- Install the recovery app somewhere other than the drive you’re trying to recover from, if you have a choice.
- Scan the system drive, usually C:.
- Search for .pst files or use *.pst if the tool supports it.
- Check file size before restoring anything.
- Recover to a different location, not back onto the same drive.
File size helped me sort junk from the real one. A fresh Outlook data file might be tiny. Your old mailbox file might be 500 MB, 2 GB, more. If the result is 12 KB, I wouldn’t trust it.
Outlook might have made a new empty file
This part fooled me once.
Outlook failed to find the old PST, then quietly made a blank replacement. Outlook still opened, which made it look like the profile was fine, but all the old folders were missing.
After recovering the older PST, open it by hand:
File > Open & Export > Open Outlook Data File
Pick the recovered file from wherever you saved it. If it opens cleanly, your old mailbox tree should show up in the sidebar. Once you confirm the mail and folders are there, go into Account Settings and switch the recovered PST to the default data file if needed.
If your account used IMAP, some mail might still be on the server
This changes the damage a bit.
If the account was IMAP, your synced mailbox mail might still exist on the mail server. Re-adding the account often makes Outlook build a new OST file and pull mail down again.
Still, I wouldn’t treat IMAP as full protection. Local archive folders, personal folders, rules, and mail saved only on the PC may have lived in the deleted PST. Those items do not always come back from the server.
What I’d do right after recovery
Once the PST is back, copy it somewhere safe.
I’d put it in a folder your backup system covers, copy it to an external drive, or keep a routine backup schedule. Outlook leaves too much room for silent damage here.
One small sign I looked for, a recovered PST with a decent size is usually better news than a tiny one. Before you replace anything or delete the newer blank file, open the recovered PST in Outlook and verify the contents.
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I’d add one thing to what @mikeappsreviewer said. Don’t focus only on file recovery first. Check whether Outlook still knows the old path.
Open Control Panel, Mail, Data Files. If the missing PST is still listed, note the full path. Sometimes people search the wrong folder, or Outlook was using a PST from AppData, not Documents. Common extra path:
C:\Users\YourName\AppData\Local\Microsoft\Outlook
Next, check File History or your backup app. A lot of Windows systems keep versioned copies even when Previous Versions shows nothing. If File History was on, restore only the PST, not the whole folder.
If you recover a PST and Outlook says it’s damaged, run SCANPST.exe. Microsoft includes it with Office. Typical locations:
C:\Program Files\Microsoft Office\root\Office16
or
C:\Program Files (x86)\Microsoft Office\root\Office16
Pick the recovered PST, let it repair, then open it in Outlook. I’ve had damaged PSTs come back with most mail intact, contacts too.
If none of that works, use Disk Drill and recover the file to an external drive. Then repair it with SCANPST. That 2-step combo works better than people think.
Also worth reading, Outlook PST file recovery help on the Microsoft forum.
Small disagree on one part, searching by size alone is risky. PSTs over 2 GB often fragment, so you might see weird recovery results. Test open the file first. Thats the part that matters.
One thing I’d do that neither @mikeappsreviewer nor @yozora really leaned on is check whether the PST was ever being indexed or cached somewhere else before chasing raw recovery.
Open Outlook and look at File > Account Settings > Data Files. If the old PST entry is broken, note the exact filename. Then search with Everything if you have it, not just Windows Search. Windows search misses stuff all the time, esp with hidden folders. I’ve found “deleted” PSTs that were actually moved into another Outlook folder by accident.
Also check this weird-but-real scenario: if Outlook had that PST attached as an archive, the mail may still appear in AutoArchive copies or exports you forgot existed. Search your drive for:
.pst.bak.tmparchive*.pst
I slightly disagree with the “Previous Versions first” crowd only because on a lot of home PCs it’s disabled and people waste an hour poking empty menus. Worth checking, sure, but I wouldn’t camp there.
If the file is truly deleted, Disk Drill is a solid Outlook PST recovery option. Recover it to another drive, then test mount it in Outlook before replacing anything. If Outlook refuses it, try SCANPST after recovery.
Also, for picking the best software for Outlook PST recovery, this video on recovering deleted Outlook PST files is worth a watch.
Big thing now: stop using that PC as much as possble until you recover it.
One angle missing from @yozora, @caminantenocturno, and @mikeappsreviewer is volume shadow copy browsing with a dedicated tool, not just the normal “Previous Versions” tab. I slightly disagree with relying on Windows’ built-in view alone because it often shows nothing even when shadow copies still exist.
Try looking for the PST in:
C:\Users\YourName\Documents\Outlook FilesC:\Users\YourName\AppData\Local\Microsoft\Outlook- any custom archive folder on another drive
Then check:
- Windows.old if you recently updated/reset Windows.
- Shadow copies using ShadowExplorer or similar.
- OneDrive version history if Documents was redirected.
If you do recover a PST, make a byte-for-byte copy of it first, then test the copy in Outlook. Don’t work on the only recovered file.
For Disk Drill, pros:
- good at finding deleted PSTs by signature
- preview and size filtering help
- simple enough if you are stressed and want fast results
Cons:
- best results are before lots of disk activity
- recovered PSTs can still be corrupted
- deep scans may return multiple confusing fragments
If the drive is an SSD, odds can be worse because of TRIM. In that case, backups, shadow copies, or cloud history often beat file recovery tools.