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ERROR_CLIP_LICENSE_NOT_SIGNED
ERROR_CLIP_LICENSE_NOT_SIGNED is HRESULT 0xC0EA0008 from Microsoft Store Client Licensing Platform (CLiP). It means that the CLiP license has no required digital signature. The practical shorthand Client Licensing not signed is useful because it points to license source, format and signature container presence as the first evidence to preserve.
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 primary record supports the reported condition that the CLiP license has no required digital signature. Keep evidence tied to the failing operation.
Evidence that can change the diagnosis
| Record | Why it matters |
|---|---|
| Primary record | License source, format and signature container presence; this is the shortest evidence path to the decision. |
| Object correlation | Keep the product, account, package, device, key, or API identity associated with the recorded identifiers and values beside the first timestamped result. |
| Neighboring-state control | Use a controlled comparison that tests whether unsigned is different from a present signature that is invalid or chains to an unknown source; this separates the named condition from a nearby status. |
| Before/after result | Retain the outcome before and after the corrective action “replace the artifact with a properly issued signed license”; keep the same identifiers until StoreContext returns a valid current license. |
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 has no required digital signature, together with the code, UTC time, and the same identity fields.
- Change one prerequisite: Replace the artifact with a properly issued signed license; 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.
How to distinguish nearby failures
The key comparison is this: Unsigned is different from a present signature that is invalid or chains to an unknown source. A valid Client Licensing not signed test keeps license source, format and signature container presence attached to the same object and varies one supported prerequisite.
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: StoreContext.GetAppLicenseAsync — diagnostic/remediation API reference.
- Microsoft: Sign an MSIX package — lifecycle reference.
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