1. Open an elevated PowerShell.

2. Type the command below into the elevated PowerShell, and press Enter to see if SMB1 is currently enabled or disabled. (see screenshots below)

Get-WindowsOptionalFeature -Online -FeatureName "SMB1Protocol"

3. Then Check if its online or offline. If it is offline or Disabled Type in this command below

Enable-WindowsOptionalFeature -Online -FeatureName "SMB1Protocol" -All

To turn it back off

Disable-WindowsOptionalFeature -Online -FeatureName "SMB1Protocol" -All