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Dynamics 365 CommunityForums Finance | Project Operations, Human Resources, ... How to solve Preparati...

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How to solve Preparation failed error during service update

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Posted on by Saran S

Hi community,

When I try to apply a service update on my Dev environment, I receive a /Preparation failed/ error, and the log is also empty.

I attempted the update using the LCS admin login.

My C drive has 40GB of free space, and my K drive has over 200GB of free space, but I still encounter the error.

Does anyone have a solution for this issue?

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Anthony Blake Super User 2025 Season 2 on at

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My usual checklist would be something like:

Check admin account is still default in LCS

Check diskspace: already done

Check everything closed, e.g. visual studio

Restart box and retry

Make sure custom code on the box is in a build state - if not, build models and then restart (no sync needed)

Finally the sledgehammer approach - provision a replacement

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Saran S on at

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Resolved.

The SSL certificate had expired.

After rotating the SSL certificate from LCS and performing the service update, it is now working.

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