I would recommend the Intel based computer users should update the new microcode through windows update.

The reasons to update microcode firmware
CVE-2019-11091 – Microarchitectural Data Sampling Uncacheable Memory (MDSUM)
CVE-2018-12126 – Microarchitectural Store Buffer Data Sampling (MSBDS)?
CVE-2018-12127 – Microarchitectural Load Port Data Sampling (MLPDS)
CVE-2018-12130 – Microarchitectural Fill Buffer Data Sampling (MFBDS)
Visit Microsoft official website for detailed information to download update and to install


for 1511
https://support.microsoft.com/en-us/help/4494454/kb4494454-intel-microcode-updates
for 1607
https://support.microsoft.com/ms-my/help/4494175/kb4494175-intel-microcode-updates
for 1703
https://support.microsoft.com/en-us/help/4494453/kb4494453-intel-microcode-updates
for 1709
https://support.microsoft.com/en-us/help/4494452/kb4494452-intel-microcode-updates

for 1903
https://support.microsoft.com/ha-latn-ng/help/4497165/kb4497165-intel-microcode-updates

Unfortunately microsoft does not released microcode for 1803 and 1809 version .
Source taken from :: https://support.microsoft.com/en-us/
Thanks for reading my post.