Windows 7 can't run with memory chips which Memtest86+ finds flawless

Is there any explanation, why Memtest86+ can't find memory problems, while Windows fails with same configuration?
Perhaps some address areas can't be controlled, because these are reserved by system BIOS?

New PC after clean installation of Windows 7 Pro SP1 from original OEM CD.

Windows update fail with error Code 80244019 (Windows could not search for updates
An error occurred while checking for new updates.) Occasionally also other errors.

I also used different hard drives SSD's but no difference.

I run Memtest86+ overnight but no errors.
I repeated W7 clean install many times experimenting with different fixes but none worked.
Update still failed and there were also occasional BSOD's when running W7 without updates.

Finally I obtained 2 Kingston DDR4 sticks for testing and all problems where gone.
I was not very surprised actually because all efforts done so far indicated to hardware malfunction.
I did several new installs for testing but problem definitely was solved with new DIMMs.
Afterwards again test with this previous memory and problem came back...

My conclusion is that Windows 7 can't run with memory chips which Memtest86+ finds flawless.

Any explanations?


Hardware:
Crucial 8GB PC17000 DDR4 KIT2 CT2K4G4DFS8213
Intel I5 3200/6M S1151 BX 6500
Gigabyte B150 S1151 MATX GA-B150M-D3H

Are you still running of the server from your 2013 post, (KMS Activation)??

If so you need their authority and server details to get updates.

Please follow the instructions in this link
Windows Genuine and Activation Issue Posting Instructions.

Roy

torchwood said:

Are you still running of the server from your 2013 post, (KMS Activation)??
Roy

This PC is retired and instead KMS activation this old PC used serial key.

Now it's a brand new PC first Windows Pro 7 SP1 OEM installation (Due to problem 15 perhaps already .
Different installation (official original) media tested. No activation.
Usually there isn't a problem to download updates before activation.

And so is the case when I change memory chips from Crucial to Kingston.
(same size, same speed, same slots).

But question remains, how can memory pass memtest86+ if windows fails?
Easy explanation would be if there are some reserved areas not accessible for memory tests?
Some irregular read/write operation sequence, not tested by Memetest86+?

AddRAM said:

What do failed updates have to do with memory ? Obviously the Crucial sticks are garbage, just chuck em :)

type this in the run box, let it run. mdsched.exe
Let us know what the results are.

Really a good point - your advice makes sense.

Entering mdsched.exe to command line results in error:
"Check your computer for memory problems - Restart now and check for problems"
(checked more then 1 time)

That's it.
Now we already have a clear fact.
Windows 7 memory diagnostic claims memory has problems and Memtest86+ overnight tests confirm we are going fine - except that Windows 7 can't run on this system.
Whom to blame, Windows or Memtest?

PS. Windows 7 is still capable to run without updating for some (unknown) time.