windows updates are failing

CheckSUR is clean.
Let's have a look at the services...

Please download the Farbar Service Scanner from

http://www.bleepingcomputer.com/download/farbar-service-scanner/

Right-click on the saved file and select 'Run as Administrator', and tick all the options, then click on the Scan button - copy and paste the report to your response.

What exact security software are you running? I would have expected Kaspersky to give different results to those that show in the report - namely, disabling Defender, but not the Firewall.

Code:

Firewall Disabled Policy: 
==================
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile]
"EnableFirewall"=DWORD:0

..is an unusual entry, but possibly OK if you're using a third-party firewall.

From the sound of it there was a fairly long period when you may have been unprotected.

It also sounds as if you may have a 'non-kosher' install of security software.

If that is the case, then you really need to rethink your protection scheme!

Let's start with a few basics...


Please download and install Malwarebytes Anti-malware (free version) from http://www.malwarebytes.org/products/malwarebytes_free/ - UNtick 'Enable free trial of MBAM Premium' at the end of the installation - and update it, then run a full scan in your main account, and Quick scans in any other user accounts.

Quarantine everything it finds

Then...

Please run a full CHKDSK and SFC scan....
Click on Start > All Programs > Accessories
Right-click on the Command Prompt entry
Select Run as Administrator and accept the UAC prompt - the Elevated Command Prompt window should pop up.
At the Command prompt, type
CHKDSK C: /R
and hit the Enter key.
You will be told that the drive is locked, and the CHKDSK will run at the next boot - hit the Y key, and then reboot.
The CHKDSK will take a few hours depending on the size of the drive, so be patient!
After the CHKDSK has run, Windows should boot normally (possibly after a second auto-reboot) - then run the SFC.

SFC -System File Checker - Instructions
Click on Start > All Programs > Accessories
Right-click on the Command Prompt entry
Select Run as Administrator and accept the UAC prompt - the Elevated Command Prompt window should pop up.
At the Command prompt, type
SFC /SCANNOW
and hit the Enter key
Wait for the scan to finish - make a note of any error messages - and then reboot.

Upload the CBS.log file (compressed, please!) to your reply.

Here's one of the instances of the problem ID's...

Code:

 Line 10811: 2015-03-06 08:47:35, Error                 CSI    0000004c (F) HRESULT_FROM_WIN32(ERROR_REQUEST_OUT_OF_SEQUENCE) #156912# from Windows::COM::CPendingTransaction::IStorePendingTransaction_Apply(...)[gle=0x80070308]
 Line 10812: 2015-03-06 08:47:35, Error                 CSI    0000004d (F) HRESULT_FROM_WIN32(ERROR_REQUEST_OUT_OF_SEQUENCE) #154971# from Windows::ServicingAPI::CCSITransaction::ICSITransaction2_AddFiles(Flags = 1, a = @0x1a21410, fn = @0x1a21c10, fp = @0x1a22410, disp = 0, op = 0)[gle=0x80070308]
 Line 10814: 2015-03-06 08:47:35, Error                 CBS    Failed to stage execution package: Package_2_for_KB3004361~31bf3856ad364e35~amd64~~6.1.1.0 [HRESULT = 0x80070308 - ERROR_REQUEST_OUT_OF_SEQUENCE]
 Line 10818: 2015-03-06 08:47:35, Error                 CBS    Failed to process single phase execution. [HRESULT = 0x80070308 - ERROR_REQUEST_OUT_OF_SEQUENCE]

Try this...
Open an Elevated Command Prompt, and run the following commands...

REG LOAD HKLM\COMPONENTS C:\Windows\System32\config\COMPONENTS
REG DELETE HKLM\COMPONENTS /V PendingRequired


reboot and then attempt Windows Update again.

No - it was simply that something had prevented Windows Update from resetting a switch in the registry that told the OS that the last update had finished installing.