Microsoft Download Center Archive

Hotfix Update for Exchange Server 2016 CU23 HU18 (KB5066370)

  • Published:
  • Version: 15.01.2507.059
  • Category: office
  • Language: English

Hotfix Update for Exchange Server 2016 CU23 HU18 (KB5066370)

Please see the KB article for more information about security content in this update.
Knowledge Base Articles:

Files

Status: Live

This download is still available on microsoft.com. The downloads below will come directly from the Microsoft Download Center.

System Requirements

Operating Systems: Windows Server 2012, Windows Server 2012 R2, Windows Server 2016


Exchange Server 2016 System Requirements and Prerequisites

For information about Exchange 2016 system requirements and prerequisites, see the following topics:


Actual requirements will vary based on system configuration. For more detailed system requirements, please refer to the Exchange Server 2016 Technical Documentation Library.

Installation Instructions

We recommend that you restart your server before you install an update.

Then, follow these steps:
  1. To start the download, select the Download button, and then do one of the following:
    • a. To start the installation immediately, temporarily disable any anti-virus software and then select Run.
    • b. To copy the download file to your computer for installation at a later time, select Save.
  2. Temporarily disable any anti-virus software before starting the installation.
  3. After the installation is completed, re-enable the antivirus software, and then restart your computer.
    (The installation program may prompt you to restart. We strongly recommend that you restart the computer even if you are not prompted to do this.)

If problems occur during or after the installation, please see Fix failed Exchange Server updates and run the Exchange Server Health Checker tool. Check Exchange Team Blog for latest news on updates. Microsoft Support is available for any persistent problems.

Additional Information

Exchange 2016 File Hash Information

  1. File Name: Exchange2016-KB5066370-x64-de.exe
    Language: German (de-de)
    SHA 256: F7FF0EFADE1447BC4EE9BFEA008875F0572653218AE411556A48CBC26774E6D2
  2. File Name: Exchange2016-KB5066370-x64-en.exe
    Language: English (en-us)
    SHA 256: 486C145A6D67E6C72AA56C9793C26B3338E7300FACDD59D9FC7BBEDBBF51388A
  3. File Name: Exchange2016-KB5066370-x64-es.exe
    Language: Spanish (es-es)
    SHA 256: B613C6E1DBDF65B7669494718D82112390BAEB85B15519C06714D9E0262AA597
  4. File Name: Exchange2016-KB5066370-x64-fr.exe
    Language: French (fr-fr)
    SHA 256: 8D3F73C52017D386712933F5E534B8D1FBC5AD87053CCD80BC63C0F932AE6FE7
  5. File Name: Exchange2016-KB5066370-x64-it.exe
    Language: Italian (it-it)
    SHA 256: 7DB952F7FD364F575A28896942E0112375D07390EB465E736480966EB4E02605
  6. File Name: Exchange2016-KB5066370-x64-ja.exe
    Language: Japanese (ja-jp)
    SHA 256: 8751C09B99F469221732F4BB69BFAFCADB8C8A8A595D2F8B6F9D636172802DE6
  7. File Name: Exchange2016-KB5066370-x64-ko.exe
    Language: Korean (ko-kr)
    SHA 256: 2F342E324DA16F4C831C10068C83C773FF9D4C25358B0D90106019D59C47637E
  8. File Name: Exchange2016-KB5066370-x64-pt.exe
    Language: Portuguese-Brazil (pt-br)
    SHA 256: 6A2ECF8801353AAE6757C12566BB1C048D0FE4D3A20BDB1936BC3861DB30A8D7
  9. File Name: Exchange2016-KB5066370-x64-ru.exe
    Language: Russian (ru-ru)
    SHA 256: 6CB5DCBDC13A43CD1D432AB428B0904E0D726FECC1B6512710510CC834FC9D5D
  10. File Name: Exchange2016-KB5066370-x64-zh-hans.exe
    Language: Chinese-China (zh-cn)
    SHA 256: B33A9C94E33FF33E33C9C4D4C0D979F5876BB4F49298282B8134D0D06A683590
  11. File Name: Exchange2016-KB5066370-x64-zh-hant.exe
    Language: Chinese-Taiwan (zh-tw)
    SHA 256: B2654E6A29F612CC32C44C9C21BF0D30169A6D7D4AD734030979CA7DD1717626
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