It took 4 attempts to upgrade to Windows 10 and some issues I had were on 4 attempts:
1 – Had to update Windows first.
2 – Had to remove recovery partition
3 – Had to reconnect the LAN
4 – Successful update to Windows 10 low sound so go to
The key to fixing the low sound is checking the “Loudness Equalization”.
There is also an update at lenovo support to update the LAN driver at http://support.lenovo.com/us/en/products/Laptops-and-netbooks/ThinkPad-T-Series-laptops/ThinkPad-T410i?linkTrack=GPS:Body_Search%20Products&tabName=downloads&beta=false