NetOpsKit

AI Error Code Decoder

Decode Windows Event IDs, BSOD stop codes, HRESULTs, TLS and NVR errors into causes and step-by-step fixes.

Passwords, secrets, tokens, keys and SNMP communities are masked on our server before analysis. Please still avoid pasting anything highly sensitive. Free: 5 analyses/day. Create a free account for 10.

AI output can be wrong. Verify before applying changes to production systems.

How to use this tool

Paste the full error text if you can, not just the number, and mention the product and version. You get the meaning, the most likely causes ranked, fix steps from least to most invasive (with risks flagged), and signs that it is hardware or needs vendor support.

Worked example

Event ID 4625 with sub status 0xC0000064 means a failed logon for a user name that does not exist, which in bulk is a typical sign of password-spraying or a misconfigured service account.

Frequently asked questions

Why does it ask which product I mean?

The same code can mean different things in different products, so ambiguous codes are listed with each interpretation.

Will fixes risk my data?

Steps that can lose data are marked. Back up before running them.

Which errors work best?

Windows event IDs and stop codes, HRESULTs, Linux kernel and systemd messages, TLS errors and database errors.

Stuck on something this page doesn't cover?

Tell us the problem in your own words. We use these reports (anonymously) to decide which guides to write. No account, name or email needed. Do not include passwords or customer data.