Error 0x80070490 Applying Windows 7 Service Pack 1

When applying Service Pack 1 to Windows 7, the service pack fails, rolls back the changes and reports error 0x80070490 (Element Not Found).

This may be caused by a missing driver. To determine the driver:

1. Open c:\Windows\inf\setupapi.dev.log.

2. Look for lines similar to:

   !!! sto: Failed to find driver update '<Driver.inf>' in Driver Store. Error = 0x00000490

3. Open an elevated command prompt and type:

   pnputil -a <Driver.inf>

   You should then receive:

   Microsoft PnP Utility

   Processing inf : driver.inf

   Driver package added successfully.

   Published name : oem78.inf

   Total attempted: 1

   Number successfully imported: 1

4. Repeat for each driver instance.

5. Reapply the service pack.