Performing inline upgrade of Windows Server 2012 to Windows Server 2012 R2 ?

Senior IT System Engineer
Senior IT System Engineer used Ask the Experts™
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People,

I've got Windows WDS/MDT server that is on physical box running Windows Server 2012, it kept on failing on Windows Update, so I wonder how to perform upgrade to Windows Server 2012 R2 standard without losing the current settings and application ?

The C: drive is just 30 GB free out of 68 GB
Note: the C: drive is just RAID-1 from 2x 72 GB HDD.
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Cloud Architect
Commented:
You should be able to run the setup,exe from within your current Windows version when either copying the iso to this server or using a DVD/USB ...

Once you run setup it will ask you if you want to "Upgrade: Install Windows and keep files, settings and applications"

Here is a Technet article that gives more info on the possible upgrade paths. Just make sure you're not using something that would possibly block the upgrade (eg, something that is not compatible with 2012R2), this will probably not be the case, but better be warned ;-)
Senior IT System EngineerSenior Systems Engineer

Author

Commented:
Thanks man,
yes the upgrade went smoohtly succesful.

so can I delete the C:\Windows.old directory now ?
Zephyr ICTCloud Architect
Commented:
If you don't need it anymore you can delete it yes, but follow Microsofts guide for doing it, you can find it here: http://windows.microsoft.com/en-us/windows7/how-do-i-remove-the-windows-old-folder
Senior IT System EngineerSenior Systems Engineer

Author

Commented:
Thanks !
Senior IT System EngineerSenior Systems Engineer

Author

Commented:
What about if the C: drive is just 25 GB free ?
is that going to work ?

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