How do you wipe a computer clean to sell it?
Android
- Open Settings.
- Tap System and expand the Advanced drop-down.
- Tap Reset options.
- Tap Erase all data.
- Tap Reset Phone, enter your PIN, and select Erase Everything.
How do I completely clean my hard drive?
Go to Settings > Update & Security > Recovery, and click Get Started under Reset this PC. You are then asked if you want to keep your files or delete everything. Select Remove Everything, click Next, then click Reset. Your PC goes through the reset process and reinstalls Windows.