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SL_E_CIDIID_INVALID_CHECK_DIGITS
Where this licensing result is produced
SL_E_CIDIID_INVALID_CHECK_DIGITS belongs to offline IID/CID activation. The producing mechanism is the offline activation exchange in which an Installation ID is generated for one activation context and a Confirmation ID is returned for that same context. The important the boundary is: the local Software Protection Platform detects invalid integrity digits in the supplied IID/CID value.
This result is HRESULT 0xC004F04D. Pair it with the selected product/Activation ID and operation name so later logs do not attribute an add-on, edition, or volume-license result to the base Windows product.
Checks in the order that matters
- Begin with the operation that emitted this result and its target Activation ID.
- inventory Activation ID, product key, Installation ID, Confirmation ID, hardware binding and deposit operation; this establishes whether the request was aimed at the intended product and activation channel.
- use events and tool output to demonstrate: compare grouped digits to the authoritative source, inspect OCR/manual entry, and record which stage copied the value.
- rule out the adjacent case: this identifies transcription corruption rather than an activation-server policy refusal.
- After the narrow correction for this HRESULT, verify both the immediate HRESULT and the persistent licensing state after service restart or reboot when relevant.
A useful diagnostic record
The decisive record is to compare grouped digits to the authoritative source, inspect OCR/manual entry, and record which stage copied the value. Before changing the system for this HRESULT, add the following context:
- Product identity for this HRESULT: exact slmgr or API operation and Software Protection event.
- Activation context for this HRESULT: Activation ID selected for /dti and /atp.
- State at failure for this HRESULT: IID and CID length/version without publishing the complete identifiers.
- Correlation evidence for this HRESULT: partial product key and edition/channel.
- Change history for this HRESULT: hardware or environment change between IID generation and CID deposit.
When investigating this result, protect secrets while collecting evidence. Full product keys, complete IID/CID values, private keys, PINs, challenge blobs, account credentials, and unredacted certificate material for this HRESULT do not belong in public tickets. Partial keys, hashes, thumbprints, IDs, timestamps, and state transitions are normally enough to correlate the failure.
Two platform rules are especially relevant to this result. for this HRESULT: The Installation ID must be obtained before the Confirmation ID is deposited; the returned CID is tied to the activation context represented by that IID. for this HRESULT: Formatting errors, unsupported versions, mismatched IDs, and a failure to save a valid CID occur at different points and should not be merged into one “telephone activation failed” message.
Choose recovery by the producing stage
| Result | Different boundary |
|---|---|
SL_E_CIDIID_MISMATCHED | Relative to it: the Confirmation ID was issued for a different Installation ID than the one represented by the current request. |
SL_E_CIDIID_NOT_DEPOSITED | Relative to it: a Confirmation ID passed validation far enough to be processed but could not be committed to the local licensing state. |
SL_E_CIDIID_INVALID_DATA_LENGTH | Relative to it: the local deposit operation receives an IID/CID payload with the wrong total encoded length. |
When it appears with related results, order them by timestamp and Activation ID. The earliest code at the producing boundary usually carries more diagnostic value than a later summary state.
Do not infer the cause of it from the activation UI alone. This identifies transcription corruption rather than an activation-server policy refusal. Preserve the boundary when converting the HRESULT into user-facing diagnostics.
The narrow remediation path
The appropriate correction for this HRESULT is to correct the altered group or reacquire the CID and rerun the deposit command once. Keep the original evidence until a subsequent status query confirms that the intended Activation ID reached the expected state.
Representative failure: A photographed CID is transcribed with an 8 read as a 3.
Actions that usually make this harder to diagnose
- While diagnosing it, avoid reusing a CID produced for another IID, product key, or machine state. That action changes evidence for this HRESULT without correcting the established boundary.
- avoid posting complete installation or confirmation identifiers in public logs. The result already narrows the problem more precisely.
- do not delete licensing stores, edit signed license files, alter firmware markers, bypass certificate checks, or use unofficial activation tools. During investigation, those actions can create a second integrity problem and destroy the evidence needed to repair the legitimate license.
Verification after the change
Verification for this HRESULT should include a failing fixture for “the local Software Protection Platform detects invalid integrity digits in the supplied IID/CID value” and a passing fixture after the narrow correction. Reboot or restart only when the documented mechanism requires it, and confirm that the state persists afterward.
Technical references
- Slmgr.vbs activation options — platform behavior relevant to it.
- Microsoft activation error-code troubleshooting — diagnostic and operational context for this HRESULT.
- ActivateOffline WMI method — supported tools and state fields used to verify it.
- SoftwareLicensingProduct WMI class — Microsoft guidance for the activation mechanism represented by it.
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