How to Recover Lost Files After Upgrading from Windows 7/8/8.1 to Windows 10

Updated on January 8, 2026 by Admin to Deleted File Recovery

Should you migrate to Windows 10 or continue using what you've got? Unfortunately, there is no universally correct answer to this question. Nowadays, many people are still better off sticking with Windows 7 or Windows 8, but more people choose to upgrade to Windows 10. As we all know, the upgrade process will change data on your disk, so you are at high risk of loss of data.

Losing precious files after upgrading from Windows 7/8/8.1 to Windows 10 can be distressing. You may feel unsure of what to do next. The good news is that you don't need to panic—professional data recovery software can help. Hasleo Data Recovery is specifically designed to recover lost files on Windows systems. Its advanced scanning engine efficiently locates and restores deleted or lost data, giving you peace of mind.

Download Hasleo Data Recovery

How to Recover Lost Files After Upgrading from Windows 7/8/8.1 to Windows 10 with Hasleo Data Recovery Free.

Step 1: Choose Deleted File Recovery

Download, install, and run Hasleo Data Recovery. On the main interface, select Deleted File Recovery mode.

select deleted scan recovery mode

Step 2: Select a Location to Scan

Select the partition where you lost your files, then let the software scan it for recoverable data.

select sd card to scan

Step 3: Preview and Recover Deleted Files

The software will display a list of found files. You can preview them by path or by type. Select the files you want to recover, then click the "Recover" button to save them.

preview lost files

Important Notes:

  1. If some files are not found by Deleted File Recovery, please click "Deep Scan" button to start the Deep Scan Recovery process, deep scan takes more time, but can find much more lost files.
  2. If the device you want to recover data from is encrypted with BitLocker Drive Encryption, try BitLocker Data Recovery.
  3. Do not save recovered files to the original device where data loss occurred, as this may overwrite the lost data.
  4. You can export or save the scan results for later use or future recovery.

 

Conclusion

As professional data recovery software, Hasleo Data Recovery makes it easy to recover lost files after upgrading to Windows 10 from Windows 7, 8, or 8.1.