Microsoft Download Center Archive
 | SQL Server® 2017 for Microsoft® Windows Latest Cumulative Update |
Cumulative Update Package 21 for SQL Server 2017 - KB4557397
- The latest Cumulative Update (CU) download is the most recent CU released for SQL Server 2017 and contains all updates released since the release of SQL Server 2017 RTM.
- This Cumulative Update includes all fixes from all previous RTM Cumulative Updates, therefore it can be installed to resolve issues fixed in any previous RTM CU
- The latest 2017 update is CU21 - KB4557397
Files
 | Status: LiveThis download is still available on microsoft.com. The downloads below will come directly from the Microsoft Download Center. |
| File | Size |
|---|---|
 SQLServer2017-KB4557397-x64.exeSHA1: e91bfa33a34accf82a0c374c9e8b7d0ce3b7ce05 | 533.26 MB |
File sizes and hashes are retrieved from the Wayback Machine’s indexes. They may not match the latest versions of files hosted on Microsoft servers.
System Requirements
Operating Systems: Windows 10, Windows 8, Windows 8.1, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019
For complete system requirements, please reference the detailed Systems Requirements page.
Installation Instructions
After the download has completed, execute the download package on the system where the SQL Server components to be updated are installed and follow the instructions.