To find the Windows installation ID, use one of these methods:
- Open the Activation troubleshooter:
- Press Windows + I to open Settings.
- Go to System > Activation.
- Select Troubleshoot.
- Follow the prompts. If the activation flow requires the installation ID, it can be shown there.
- If the device recently had a major hardware change, use the activation tools from the Activation page:
- Open Start > Settings > System > Activation.
- Run the activation troubleshooter from that page.
- If activation is failing, make sure the device can reach the activation service:
- Check Start > Settings > Time & language > Date & time and verify the date and time are correct.
- In the taskbar search box, type network troubleshooter, then select Identify and repair network problems.
- Follow the steps, then restart the device if needed.
If the Lenovo device came with Windows preinstalled, activation may also depend on installing the same edition of Windows that originally came with the device.