Computer freezes on "Starting Windows" at bootup

It sounds as if the problem is that you're either using Safe Mode, rather than the Repair Environment - or you're using the wrong drive letter.
You cannot do copy in either Safe Mode or normal mode, because of permissions issues. That's why I instructed you to use the Repair Environment.
Be VERY careful about changing permissions in the winsxs folder - it can have serious consequences!

Here's the problem one...

Code:

Line 53973: 2015-06-24 17:57:09, Info                  CSI    0000031f [SR] Repairing 1 components
 Line 53974: 2015-06-24 17:57:09, Info                  CSI    00000320 [SR] Beginning Verify and Repair transaction
 Line 53977: 2015-06-24 17:57:09, Info                  CSI    00000322 [SR] Cannot repair member file [l:54{27}]"TaskScheduler.resources.dll" of TaskScheduler.Resources, Version = 6.1.7600.16385, pA = PROCESSOR_ARCHITECTURE_MSIL (8), Culture = [l:10{5}]"en-US", VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type neutral, TypeName neutral, PublicKey neutral in the store, hash mismatch

I'll post another fix protocol later which should get rid of it

I've uploaded a file - i3kab.zip - to my OneDrive at Noel'sOneDrive
Please download and save it.

Right-click on the saved file and select Extract all...
Change the target to C:\ and click on Extract

Close all windows (it would be a good idea to print these instructions!)

Now reboot to the Repair Environment - as soon as the machine restarts, start tapping F8 - this should bring up the Advanced Boot Menu, at the top of which should be the option 'Repair my Computer'

Pick that

You'll have to log in with your username and password.
Pick the option to use a Command Prompt

At the prompt type

DIR C:\i3kab
hit the enter key - if you get a 'Not Found' error try
DIR D:\i3kab
or
DIR E:\i3kab

The drive letter in use when you find the folder will need to be substituted (for<drive>)into the following command...

XCOPY <drive>:\i3kab <drive>:\windows\winsxs /y /i /s /v /h

(e.g. XCOPY P:\wfire P:\windows\winsxs /y /i /s /v /h )

run the command (it should take almost no time) and when the prompt returns, type

EXIT

and hit the Enter key to exit Command Prompt - reboot to Normal Mode Windows.


Now run SFC /SCANNOW in an Elevated Command Prompt

then reboot and upload the new CBS.log file to your reply

Odd - the file I uploaded is definitely the right one - but it doesn't appear to have been copied into the right place for some reason.

Let's check a couple of things first...

Open an Elevated Command Prompt, and run the following commands

Code:

 DIR C:\i3kab
 DIR C:\Windows\winsxs\i3kab
 ICACLS C:\Windows\WinSxS\msil_taskscheduler.resources_31bf3856ad364e35_6.1.7600.16385_en- us_21df7e00fbf2db0a\TaskScheduler.resources.dll
 
 .

Post the results.

Here are some instructions to make life easier :)

1) To open an Elevated Command Prompt Window (the ECP window), click on Start, All Programs, Accessories – then right-click on Command Prompt, and select Run as Administrator. Accept the UAC prompt.

2) To run the commands easier, highlight the block of commands, and right-click on the highlight – select Copy. In the ECP Window, click on the black/white icon at topleft – select Paste. The commands will run but may not complete the last command, so hit the Enter Key once.

3) To copy the results... click on the Black/White icon in the top left, and select Edit...'Select All', and hit the Enter key - then use Ctrl+V or r-click+Paste to paste it into your response.