Upgrade stops responding (hangs) at 62% when you upgrade to Windows 7

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Symptoms

When you try to upgrade your computer from Windows Vista to Windows 7, the upgrade process stops responding at 62% indefinitely.

Additionally, Windows creates a file that is named system_drive:\$WINDOWS.~BT\Sources\Panther\setupact.log. If you examine the contents of the file, you notice the following information:

<date> <time>, Info                  MIG    IPostApply::ApplySuccess for Plugin={ServerPath="%windir%\system32\migration\IphlpsvcMigPlugin.dll", CLSID={ade10465-2a43-454e-b0a7-3f220a61bd03}, ThreadingModel=Apartment} - Working directory: C:\$UPGRADE.~OS\OnlineUpgradeApplyWork\srcworking\agentmgr\CCSIAgent\005AE0CB
<date> <time>, Info       [0x0808fe] MIG    Plugin {ade10465-2a43-454e-b0a7-3f220a61bd03}: IphlpsvcMigPlugin: IphlpsvcMigPlugin: Performing upgrade actions for all protocols
<date> <time>, Info       [0x0808fe] MIG    Plugin {ade10465-2a43-454e-b0a7-3f220a61bd03}: IphlpsvcMigPlugin: IphlpsvcMigPlugin: CountInterfacesOfAType for 0.InterfaceCount ptr = 1dae2b8, InterfaceCount = 0
<date> <time>, Info       [0x0808fe] MIG    Plugin {ade10465-2a43-454e-b0a7-3f220a61bd03}: IphlpsvcMigPlugin: IphlpsvcMigPlugin: CountInterfacesOfAType for 0.Incrementing interface count
<date> <time>, Info       [0x0808fe] MIG    Plugin {ade10465-2a43-454e-b0a7-3f220a61bd03}: IphlpsvcMigPlugin: IphlpsvcMigPlugin: CountInterfacesOfAType for 0.InterfaceCount ptr = 1dae2b8, New value of *InterfaceCount = 1
<date> <time>, Info       [0x0808fe] MIG    Plugin {ade10465-2a43-454e-b0a7-3f220a61bd03}: IphlpsvcMigPlugin: IphlpsvcMigPlugin: RegEnumKeyEx return 259. key name: {AC049C3C-9B90-41A7-9385-DC5AD3E656F0}.new index: 2
Warning [0x080b50] MIG AsyncCallback_ApplyStatus: Progress appears to be stuck. Current progress: 62

Note Generally, drive is drive C on the computer.

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Cause

This problem occurs because the Iphlpsvc service stops responding during the upgrade.

Note Other services may also cause a problem in which the upgrade process stops responding at 62%.

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Resolution

Important Do not use this resolution if the upgrade stops responding at a percentage other than 62% or if the log entries are not logged. For more information about how to open the Seupact.log file, see the More Information section.

To have us fix this problem for you, go to the "Fix it for me" section. If you prefer to fix this problem yourself, go to the "Let me fix it myself" section.

Fix it for Me

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. Either download the following fix to a flash drive or to a CD or return to this article on the machine where the upgrade fails. If you return to this article on the machine where you experience this problem, click the
Fix this problem
link. Click
Runin the
File Downloaddialog box, and follow the steps in the Fix it wizard.

Note this wizard may be in English only; however, the automatic fix also works for other language versions of Windows.

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

Next, go to the "Did this fix the problem?" section.

Let me fix it myself

To resolve this problem yourself, follow these steps:

Restart the computer. Then, your computer will roll back to Windows Vista.
Click Start, right-click Computer, and then click Properties.
On the Advanced tab, click Environment Variables.
Under System variables, click New.
Type MIG_UPGRADE_IGNORE_PLUGINS in the Variable name field.
Type IphlpsvcMigPlugin.dll in the Variable value field.
Click OK three times to close the dialog boxes.
Start the upgrade installation again.

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More Information

How to open the seupact.log file

To open the setupact.log file during the upgrade process, press SHIFT+F10 to open a command prompt, type C:\$WINDOWS.~BT\Sources\Panther\setupact.log, and then press ENTER.

To open the setupact.log file after the computer rolls back to Windows Vista, click Start, type C:\$WINDOWS.~BT\Sources\Panther\setupact.log in the Start Search box, and then press ENTER.

The seupact.log file will be opened in notepad. To view the latest log entries, scroll to the bottom of the file.

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Did this fix the problem?

Check whether the problem is fixed by upgrading your computer from Windows Vista to Windows 7. If the upgrade process progresses beyond 62%, you are finished with this article. If the problem is not fixed, you can contact support.

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