For Outlook.com/Hotmail on the web, there is no user-accessible “backup” restore point for the Inbox beyond the standard recovery locations.
Try this in order on a computer:
- Check Deleted Items
- Open Deleted Items.
- If the messages are there, select them and choose Restore or Move them back to Inbox.
- Check Recoverable Items
- In Deleted Items, select Recover items deleted from this folder.
- If the missing messages appear there, select them and choose Restore.
- Messages removed from Deleted Items are recoverable for 30 days.
- If restored, messages go back to their original folder when possible; otherwise, messages go to Inbox.
- Check Junk Email
- Open Junk Email.
- If messages are there, select them and choose Report > Not junk, or move them back to Inbox.
- Junk email is retained for 30 days before automatic deletion.
- Check Archive
- Open Archive.
- If the messages are there, select them and choose Move to > Inbox.
- Check the message filter
- Above the message list, select Filter and set it to All.
- Check inbox rules
- Go to Rules settings and review any rule that may be moving or deleting mail.
- Edit or delete any incorrect rule.
- Rules can only be viewed and edited on a computer.
- Check whether Outlook is emptying Deleted Items on sign-out
- Go to Settings > Message handling.
- Under When signing out, clear Empty my deleted items folder.
If the messages are not in Deleted Items, Recoverable Items, Junk Email, or Archive, then the available self-service recovery options have been exhausted. In that case, use Outlook.com support from Help in Outlook.com or the Microsoft support contact flow.