Enable Fingerprint logon in Windows 8.1

Two methods

Method 1(Short)

1. Go to PC Settings

2. Click on Accounts

3. Click on Sign-In Options.

4. Under the section fingerprint. Click Add and give your fingerprints.

Method 2 (Long)

1. Go to Control Panel -> User Accounts -> User Accounts

2. Click on "Make changes to my account in PC settings"

3. Continue from the step 3 in Method 1