Check out what's new in the latest update and download KB4034664 and KB4034679 for Windows 7.

Microsoft has released Monthly Rollup update KB4034664 for Windows 7 devices. The company also released KB4034679 (Security-only update) for the OS. Microsoft security team has fixed multiple vulnerabilities in the operating system with latest August 2017 Patch Tuesday release. In addition, you can download KB4034664 offline installer from links given below.

No new operating system feature is released with this update. The update comes with bug fixes and under the hood improvements to the OS. Check out full changelog below.

What’s fixed in Windows 7 Update KB4034664

Security updates to Microsoft JET Database Engine, Common Log File System Driver, Microsoft Windows Search Component, Volume Manager Driver, Internet Explorer, Windows Server, and Windows kernel-mode drivers.

However, the new update comes with some known issues. According to the patch note, due to a defect in WLDAP32.DLL, applications that perform LDAP referral chasing can consume excessively or all of the available TCP dynamic ports after installing the previous update KB4025337 and KB4025341. Applications and roles known to make these referrals may include Outlook.exe, DFSR, and others.

If restarting applications that perform LDAP referral chasing returns normal functionality on machines that installed the previous update, you may be experiencing this issue.

To fix this issues, restart services or applications that perform LDAP referral chasing to free TCP dynamic ports. A reboot will also free ports.

Finally, to work around the problem for cluster computers hosting the DFSR service, place the virtual cluster object under the Computers container to avoid reaching the referral chasing search, which leads to the dynamic port leak.

The software giant is working on a resolution and will provide an update in an upcoming release.

Select your Windows version and download update files from the link below.

Download KB4034664 Windows 7 Offline Installer

Download KB4034679 Windows 7 Offline Installer

Download KB4034664 Windows Server 2008 R2 Offline Installer