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Ashleyye's avatar
Ashleyye
Copper Contributor
Mar 26, 2026

How to 100% wipe a pc before selling for windows 10 and windows 11

Got dozens of old office PCs (mostly Windows 10 and Windows 11) that are going to be sold soon. These machines were used daily, so they likely contain sensitive data, including documents, login info,...
YatesGriffin's avatar
YatesGriffin
Iron Contributor
Mar 26, 2026

BleachBit is an open-source tool and a reliable method for wipe a Windows 10 pc before selling. It securely overwrites free disk space, permanently removes traces of deleted files, clears browser history and temporary data, and ensures your personal information cannot be recovered, making it ideal for preparing your device before resale.

User Guide: Open the tool, click File → Shred Free Space, select the system drive, choose ‘Overwrite once’, then click Shred to begin the process. It can quickly help you securely wipe a Windows 10 pc before selling without the need to reinstall the entire system, thereby effectively removing all traces of your private data from the device.

It is particularly useful for users who want to securely erase leftover data without a full system reset, clean privacy traces from browsers and apps, or prepare a Windows 10 PC for resale with minimal effort.