| The Internet Archive is currently experiencing extended downtime due to a denial of service attack and security incident. We’ve temporarily switched Wayback Machine links to a mirror generously hosted by Ali, a member of the Windows Update Restored community. You can verify authenticity of files you download by looking for a digital signature from Microsoft Corporation in the file’s Properties dialog, or by confirming that SHA1 hashes match those we list below. You can check file hashes using 7-Zip or HashCheck. Some links may lead to a 404 page at this time. |
Microsoft Download Center Archive
 | Patch Registration Cleanup Tool |
On a computer that has a Windows Installer based product installed, you may receive an error while installing an update for the product and the installation of the update may fail.
- On a computer that has a Windows Installer based product installed, you may receive an error while installing an update for the product and the installation of the update may fail. Installation errors caused due to incorrect patch registration may be corrected using this tool.
| Knowledge Base Articles: |
|---|
Files
 | Status: DeletedThis download is no longer available on microsoft.com. The downloads below are archives provided by a community mirror. |
| File | Size |
|---|---|
 Patch Registration Tool EULA (Oct 2009) - ENG.docxSHA1: 1d07e7950f950ac3eac364746c363ea7554a92a1 | 24 KB |
 PatchRegCleanup-ia64.exeSHA1: 6122d22022d19061c5200b37529679cc5904d00b | 84 KB |
| PatchRegCleanup-x64.exe SHA1: 23207500448026b2c7c85a4dae9e529c4c322b97 | 50 KB |
| PatchRegCleanup-x86.exe SHA1: 1ecf2f685e8aff2679a6942092ac3607144d7390 | 42 KB |
System Requirements
Operating Systems: Windows 2000, Windows 7, Windows Server 2003, Windows Server 2008, Windows Server 2008 R2, Windows Vista, Windows XP
Installation Instructions
- Click the Download button on this page to start the download, or select a different language from the Change language drop-down list and click Change.
- Do one of the following:
- To start the installation immediately, click Run.
- To save the download to your computer for installation at a later time, click Save.
- To cancel the installation, click Cancel.