Resolve: Upgrade process hangs at 62% when upgrading to Windows 7

If when you are upgrading your computer from Windows Vista to Windows 7 and the upgrade process stops responding at 62% indefinitely, then this article may interest you.

This issue occurs because the Iphlpsvc service stops responding during the upgrade. It’s also important to note that other services may also cause a problem in which the upgrade process stops responding at 62%.

To fix this issue manually, do the following;

1. Restart the computer. Then, your computer will roll back to Windows Vista.
2. Click Start, right-click Computer, and then click Properties.
3. On the Advanced tab, click Environment Variables.

4. Under System variables, click New.

5. Type MIG_UPGRADE_IGNORE_PLUGINS in the Variable name field.
6. Type IphlpsvcMigPlugin.dll in the Variable value field.

7. Click OK three times to close the dialog boxes.
8. Start the upgrade installation again.

Alternatively, to fix this problem automatically, restart the computer where the upgrade to Windows 7 fails at 62%. Your computer will roll back to Windows Vista. Browse to Microsoft KB975253, then click the Fix this problem link.

Note: If you are not on the computer that has the problem, you can save the automatic Microsoft Fix it 50319 to a flash drive or to a CD, and then you can run it on the computer that has the problem.

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