Overview
The System Update Readiness Tool is being offered because an inconsistency was found in the Windows servicing store which may prevent the successful installation of future updates, service packs, and software. This tool checks your computer for such inconsistencies and tries to resolve issues if found.
The following table lists the Windows Update installation errors that may be fixed by the System Update Readiness Tool. However, the tool may be unable to fix every instance of these errors.
- 0x80070002 ERROR_FILE_NOT_FOUND The system cannot find the file specified.
- 0x8007000D ERROR_INVALID_DATA The data is invalid.
- 0x800F081F CBS_E_SOURCE_MISSING The source for the package or file not found.
- 0x80073712 ERROR_SXS_COMPONENT_STORE_CORRUPT The component store is in an inconsistent state.
- 0x800736CC ERROR_SXS_FILE_HASH_MISMATCH A component's file does not match the verification information present in the component manifest.
- 0x800705B9 ERROR_XML_PARSE_ERROR Unable to parse the requested XML data.
- 0x80070246 ERROR_ILLEGAL_CHARACTER An invalid character was encountered.
- 0x8007370D ERROR_SXS_IDENTITY_PARSE_ERROR An identity string is malformed.
- 0x8007370B ERROR_SXS_INVALID_IDENTITY_ATTRIBUTE_NAME The name of an attribute in an identity is not within the valid range.
- 0x8007370A ERROR_SXS_INVALID_IDENTITY_ATTRIBUTE_VALUE The value of an attribute in an identity is not within the valid range.
- 0x80070057 ERROR_INVALID_PARAMETER The parameter is incorrect.
- 0x800B0100 TRUST_E_NOSIGNATURE No signature was present in the subject.
- 0x80092003 CRYPT_E_FILE_ERROR An error occurred while Windows Update reads or writes to a file.
- 0x800B0101 CERT_E_EXPIRED A required certificate is not within its validity period when verifying against the current system clock or the time stamp in the signed file.
- 0x8007371B ERROR_SXS_TRANSACTION_CLOSURE_INCOMPLETE One or more required members of the transaction are not present.
- 0x80070490 ERROR_NOT_FOUND Windows could not search for new updates.
What does the System Update Readiness Tool do?
The System Update Readiness Tool creates a log file that captures any issues that the tool found or fixed. The log file is located here:
- %SYSTEMROOT%\Logs\CBS\CheckSUR.log
- %SYSTEMROOT%\Logs\CBS\CheckSUR.persist.log
When the System Update Readiness Tool detects incorrect manifests, files, or registry data, it may fixes them as it's being installed.
Download the Readiness Tool
The System Update Readiness Tool is now available for download via Microsoft Download Center. The links in this section correspond to files available for this download.
Note: The System Update Readiness Tool is not for Windows 8. Use Deployment Image Servicing and Management to fix Windows Update errors in Windows 8.
System requirements
Supported Operating System: Windows Vista, Windows 7, Windows Server 2008, Windows Server 2008 R2.
Reference
Microsoft KB947821
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