Windows 7 Update KB4091290 Download Links and Changelog

A new Windows 7 update KB4091290 is now available for download. The latest monthly roll-up update released with various fixes and improvements. An issue where the LSM.EXE process and applications that call SCardEstablishContext or SCardReleaseContext may experience a handle leak is now fixed. Check out more detail below.

New in Windows 7 update KB4091290

  • Updates time zone information.

  • This update addresses a known issue previously called out in KB4075211 where the LSM.EXE process and applications that call SCardEstablishContext or SCardReleaseContext may experience a handle leak. Once the leaked handle count reaches a certain threshold, smart card based operations fail with error with SCARD_E_NO_SERVICE

Known issues in this update

Because of an issue that affects some versions of antivirus software, this fix is being applied only to the computers on which the antivirus ISV have updated the ALLOW REGKEY.

Workaround – Contact your antivirus manufacturer to verify that their software is compatible and that they have set the following REGKEY on the computer:

Key=”HKEY_LOCAL_MACHINE”Subkey=”SOFTWARE\Microsoft\Windows\CurrentVersion\QualityCompat”

Value Name=”cadca5fe-87d3-4b96-b7fb-a231484277cc”

Type=”REG_DWORD”

Data=”0x00000000”

Windows 7 update KB4091290 Download Links

Download Windows 7 Update KB4091290 (64-Bit)

Download Windows 7 Update KB4091290 (32-Bit)