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ERROR_CLIP_LICENSE_INVALID_SIGNATURE
0xC0EA0004 is represented by ERROR_CLIP_LICENSE_INVALID_SIGNATURE. In Microsoft Store Client Licensing Platform (CLiP) the specific outcome is that the CLiP license signature did not validate. The phrase Client Licensing invalid signature narrows the first diagnostic record to license hash, signer information, signature status and acquisition source.
Why this HRESULT is specific
A Store app may have cached license information, a device license and one or more licenses for durable add-ons. The Client Licensing Platform validates the chain, signature, time and binding before protected content or functionality is enabled.
The decisive question is whether the recorded evidence supports the reported condition that the CLiP license signature did not validate. Keep evidence tied to the failing operation.
Controlled troubleshooting sequence
- Locate the exact object: Use the primary record to identify the transaction or licensed object that actually returned this result.
- Preserve the first decision: Record the earliest event stating that the CLiP license signature did not validate, together with the code, UTC time, and the same identity fields.
- Change one prerequisite: Discard the untrusted artifact and reacquire the license through Microsoft Store; do not combine this with a store reset, key replacement, account removal, package reinstall, or unrelated repair.
- Repeat the user operation: Re-run the original operation and require that StoreContext returns a valid current license; if another HRESULT appears, diagnose it as a new boundary.
Evidence that can change the diagnosis
- Primary record: license hash, signer information, signature status and acquisition source.
- Object correlation: keep the product, account, package, device, key, or API identity associated with license hash, signer information, signature status and acquisition source beside the first timestamped result.
- Neighboring-state control: use a controlled comparison that tests whether invalid signature differs from an unsigned license and from a signature by an unknown source; this separates the named condition from a nearby status.
- Before/after result: retain the outcome before and after the corrective action “discard the untrusted artifact and reacquire the license through Microsoft Store”; keep the same identifiers until StoreContext returns a valid current license.
How to distinguish nearby failures
Do not merge neighboring statuses: Invalid signature differs from an unsigned license and from a signature by an unknown source. The Client Licensing invalid signature diagnosis remains attributable only while the primary record and the affected identity stay fixed.
Evidence-preserving cautions
While investigating this result, do not copy license files between devices, disable Client Licensing services, or use third-party license repair tools. That shortcut can replace or invalidate that evidence before the original decision is understood.
Verification
The incident is resolved only when StoreContext returns a valid current license. Confirm the result by repeating the exact operation that produced this result; maintenance success alone is insufficient.
Technical references
- Microsoft Win32 metadata: winerror.h — status definition reference.
- Microsoft: StoreContext class — owning service/API reference.
- Microsoft: Sign an MSIX package — diagnostic/remediation API reference.
- Microsoft: Get license info for apps and add-ons — lifecycle reference.
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