Unable to install KB4512506

Package_1463_for_KB4338818~31bf3856ad364e35~amd64~~6.1.1.8.mum

Is primary? no
KB bla bla bla
amd64, duh 64 bit win7, yes, your minuscule system specs, yes, we have an automated tool if you read the posting instructions.

Microsoft Update Catalog

copy paste KB4338818 into M$ Update Catalog
mum cat pair
cat is short for SECURITY CATALOG
that is linked to the mum
thus they are replaced in pairs
always
with security permission in tact

Package_x_for_{update ID}~31bf3856ad364e35~x86~~6.x.x.x.cat /mum (for 32bit system)
Package_x_for_{update ID}~31bf3856ad364e35~amd64~~6.x.x.x.cat /mum (for 64bit system)

Now, I already know those are quality rollups, it roll-up all inclusive to that poiint, redundancy about 12,000 to 15,000 files best guess & yes I'm not guessing.

So I have to peruse those files for an exact match to
Package_1463_for_KB4338818~31bf3856ad364e35~amd64~~6.1.1.8.mum
Package_1463_for_KB4338818~31bf3856ad364e35~amd64~~6.1.1.8.cat
If not, corrupt file, won't work, hard link broken, windows update no workie.

Lost you yet again?

update catalog download both x86 and x64 win 7, 8, 8.1, & 10 updates
Unzip/expand those, Fred version ->

1.Download update from Microsoft Download Center and place it in any folder
2.Run console and type following commands

expand -f:*{update name}.msu {destination folder}
expand -f:*{update name}.cab {destination folder}

to unpack Windows6.1-KB980302-x86.msu which already is in C:\Temp you have to type these commands

expand -f:* C:\TEMP\Windows6.1-KB980302-x86.msu C:\TEMP