Sorry, missed that. I do notice that your original post says, 'Error formatting USB stick D:\'. Another issue I've seen is drive allocation (meaning drive letter assignment problems). It shows D:\ as the drive letter for your USB key, but would generally be for a CD drive. You could change the drive letter of the key by the following:
- Right click on 'Computer' or 'My Computer' and choose 'Manage'
When 'Computer Management' loads, do the following:
- Expand 'Storage' and click on 'Disk Management', the right side window pane will show your USB Key and the associated letter.
- Right click and choose 'Change Drive Letter and Paths', choose a higher letter than D and make sure it doesn't conflict with any other letters.
Then try to format.