A number of server administrators complain that Windows 7 upgrade hangs most of the time at the point when it comes to 62%. The annoying error occurs most of the time at the same pointer. If you are a Windows Hosting professional and facing the same stigma, illustrated below is the process to rectify the issue.
- Reboot, and your PC should roll back to Windows Vista.
- You can then open the setup log file \$WINDOWS.~BT\Sources\Panther\setupact.log
Experts at Microsoft believe that stopped response of Iphlpsvc service is the main reason behind the mess. Just add an environment variable fix the problem.
If it doesn’t work, browse the setup log or you may also boot and install the same from the Windows 7 disc.