MsMpEng.exe 50% hi MEM uninstall problems

Right so,

samsung laptop is using 50% Physical Memory on idle

start-up items = zero
ESET online scan = clean
clean boot performed = ok
sfc /scannow = ok

I've been tidying up , drivers BIOS updates
all updated, window updated ..

Uninistalled MSEssentials
however there's another copy in program files
with no option to uninstall in programs

How do I get rid of it , wipe the machine
clear of MSE and defender and start over ..

getting error code 0x80073b01 when i try to open MSE

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Tests: reinstalled mse so i could uninstall
ok so am able to have both turned off now
defender and microsoft security essentials
memory lower, still too high 30%

not even going to try to uninstall defender or MSE

would like to try to do a repair via the all-in-one tool
let windows rebuild some areas - worked before
which ones should i tick ?

jaycee are you there lovely?

Let's see what 'HitmanPro' finds:
Download the --> free to try for 30 days from here: HitmanPro 3 - SurfRight

Jacee said:

Let's see what 'HitmanPro' finds:
Download the --> free to try for 30 days from here: HitmanPro 3 - SurfRight

Nothing there Jacee

I don't think there's any malware/virus
just needs tweaking ..

is it an idea to remove windows defender
put something else on
MsMpEng.exe is a real hog




Never seen this before 30% at idle
its X2 , even 15% is top level INMO

(yes I've upgraded to win 10 )

the laptop is 3 yrs old , has had plenty
of normal software installed
I've defragged and slimmed it right down
CCleaner etc ..

its bugging me as 12% - 15% idle is what I'm expecting ..
do you agree?