How to change the Windows lock screen

Securing your computer is good for protecting your data and privacy. One of the ways to do so in Windows is by utilizing a login or lock screen. This feature requires the user to input a password on startup, or when resuming from a screensaver or sleep mode (the latter two are optional).
Some users prefer to have a specific image on their lock screen instead of the one displayed by default. To change the image on your lock screen, choose your version of Windows from the list below, and follow the instructions.
Windows 10
- Press the Windows key, type Themes and related settings, and then press Enter. Or, press Ctrl+I to open Settings, and click Personalization.
- On the left side of the window that appears, click the Lock screen option.
- In the middle of the screen, under Background, click the
on the right side of the box.
- A drop-down menu like the one below should appear. Choose Picture or Slideshow.
If you chose picture:
- Choose one of the suggested images, or click the
button.
- Navigate to the location of the picture file, select the desired picture, then click the
button.
If you chose slideshow:
- Either choose one of the folders presented to you, or click the
button next to Add a folder.
- Navigate to the location of the folder containing your pictures, then click the
button.
Windows 8 and 8.1
- Press the Windows key, type Change PC settings, then press Enter.
- In the PC settings menu, on the left, select Personalize.
- To the right of the PC settings section, click the Lock Screen option.
- Either choose one of the images suggested, or click the
button located in the lower-right corner.
- Navigate to the location of the picture file, select the desired picture, then click the
button.
Windows 7
To change the Windows login screen in Windows 7, you need to be comfortable with editing the Windows registry. We also highly recommend anyone new to the registry become familiar with the Windows registry basics. Before making any changes, we recommend you back up the registry.
The lock screen image for Windows 7 may not exceed 256 kB.
- Press the Windows key, type regedit, then press Enter.
- In the Registry Editor, navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI\Background, as shown in the screenshot, highlighted in blue:
- On the right side of the screen, double click OEMBackground.
- Set the value to 1, then click the
button.
- Close the regedit window.
- Press the Windows key+E to open Windows Explorer.
- Click your primary drive, then the Windows folder, then the System32 folder.
- Right-click in the blank area to the right of the file list and select New in the pop-up menu that appears.
- Select the
option.
- Set the name of the newly created folder to be info.
- Open the info folder and create another new folder inside it, setting the name of that new folder to be backgrounds.
- Locate the image you'd like to put on your lock screen.
- Save that image as backgroundDefault.jpg and then move it into the backgrounds folder you created in step 11 above.