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How to solve Preparation failed error during service update

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Posted on by Saran S

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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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Saran S 195 on at

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How to solve Preparation failed error during service update

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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Anthony Blake 2,359 Super User 2025 Season 1 on at

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How to solve Preparation failed error during service update

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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