Windows server 2008R2 SP1 upgrade to 2012R2 failed

Question

Windows server 2008R2 SP1 upgrade to 2012R2 failed
The following error message appears:
Before continuing, make sure the app vendors support your applications on Windows Server 2012 R2. Follow their specific recommendations before and after Windows installs. To make sure your app is compatible and to download tools and documentation, go to http://go.microsoft .com/fwlink/?LinkId=243105

Important: If the software isn't compatible with Windows Server 2012 R2 or if the app vendor doesn't support the app, uninstall it before you install Windows. If you don't uninstall the applications, your system won't be supported, the app might not work, and settings or other information might be lost.

Windows won't install unless each of these things is taken care of. Close Windows Setup, take care of each one, and then restart Windows Setup to continue.

Windows needs to be restarted so necessary changes to system files can be made before continuing.

There are multiple users currently logged on to Windows. Please have the other users log off.

Installing Windows will affect the following features:

Any language packs that are installed will not be available after the upgrade. You’ll need to reinstall your language packs after the upgrade.

How to solve this ?

Answer 1

The cleaner / much safer / more stable method is clean install the operating system, patch fully , and migrate the roles or applications over to it.

You can also review the log files found here.
https://learn.microsoft.com/en-us/windows-hardware/manufacture/desktop/windows-setup-log-files-and-event-logs

--please don't forget to Accept as answer if the reply is helpful--

Answer 2

Any progress or updates?

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Answer 3

@系統管理部-蕭漢儒
Hi,
Try to manually assign a drive letter to your system reserved boot partition in order for setup to pass the above compliance check.
If you assign a drive letter to the boot partition you would be able to run the upgrade.

Hope above information can help you.

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