How to Backup and Restore Microsoft Office 2024 LTSC Without a Product Key?

April 4, 2026 4 answers
Asked by CuriousKangaroo3
I'm facing a problem with my notebook that has Microsoft Office 2024 LTSC Professional Plus (Build 17932.20638) installed. The system is acting up, so I need to do a complete Windows reinstall using a recovery USB. The tricky part is that I don't have the product key or an installer for Office. I want to know if there's a way to fully back up the current Office setup, including its license information, to restore it later after the Windows reinstallation without having to buy a new license. Are there any reliable methods, such as copying specific folders or registry entries, that I can use to successfully bring back my Office installation afterward?

Answers

TechieTurtle42
Have you checked if you have any MAK codes in your volume license center? Thatโ€™s what we use to roll out Office 2024 on standalone machines when users don't have E3 licenses.
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AskAwayAngler
Iโ€™d recommend contacting the vendor you bought the Office from. They might help you recover your documents and provide a new copy of your keys. If you have Office 2024 LTSC, there should be a download link associated with someone's email where you can retrieve your key.
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SkepticSquirrel7
Just a heads-up, the key isnโ€™t actually stored on your PC; you only have the last five digits. You could check your Microsoft account for the key too. Alternatively, consider doing an in-place reinstall instead of a full wipe. It won't solve every issue but could fix some problems.
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GizmoGuru88
You could try using a tool like Magic Jelly Bean to recover the product key. Microsoft also has a deployment guide that might help you out, which you can find on their site.
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