By George Norman
Added on 02 Nov 2009(277 Views)
For those of you that want to switch from Vista to Windows 7, Microsoft provides the option to perform an in-place upgrade. This means you can transition from one OS (operating system) version to another without losing files, settings and programs.

There have been some reports that the Vista to Windows 7 upgrade process may fail or may stop and hang at 62%. Even after the user reboots, the upgrade process does not go beyond 62%. A look under the hood (and by that I mean the setupact.log where this error message can be found: <TimeStamp> Warning [0x080b50] MIG AsyncCallback_ApplyStatus: Progress appears to be stuck. Current progress: 62) reveals that the iphlpsvc service is responsible for this issue.

Here is what you have to do:

Step 1. Reboot your computer -> the system will rollback to Vista.

Step 2. Click the Start icon from the bottom left hand corner of the screen or press the Windows key on the keyboard (the one with the Microsoft logo on it).

Step 3. Right click My Computer.

Step 4. From the menu select Properties.

Step 3. In the System Properties window select Advanced System Settings -> click Environment Variables.

Step 4. Click New (under System Variables) -> Enter.

Step 5. Type in the following:

Variable Name: MIG_UPGRADE_IGNORE_PLUGINS
Variable value: IphlpsvcMigPlugin.dll

Step 6. Restart the Windows 7 upgrade process.

Tips and warnings
  • Please note that you cannot perform an in-place upgrade every time. Only these upgrade paths are supported:
Vista Home Basic -> Windows 7 Home Premium, Windows 7 Ultimate
Vista Home Premium -> Windows 7 Home Premium, Windows 7 Ultimate
Vista Business -> Windows 7 Professional, Windows 7 Ultimate
Vista Ultimate -> Windows 7 Ultimate
  • If you want to upgrade to Windows 7 from an unsupported upgrade path (like for example from XP to Windows 7, or from Vista Home Basic to Windows 7 Ultimate), you will have to perform a “custom install.” You will lose your files, settings, programs and other data unless you back them up.
  • You can use Easy Transfer and a USB stick or Easy Transfer and a local network to migrate from XP to Windows 7.




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Tags: Microsoft, Windows 7, Upgrade

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