Windows suddenly says NOT GENUINE. but actually it is. Help me.

Copy/paste usually works without a problem - attempting to open or zip the original will almost always fail.

Here's the error list from the SFC scan...

Code:

	Line 3461: 2015-07-11 19:59:15, Info                  CSI    00000347 [SR] Repairing 6 components
	Line 3462: 2015-07-11 19:59:15, Info                  CSI    00000348 [SR] Beginning Verify and Repair transaction
	Line 3463: 2015-07-11 19:59:15, Info                  CSI    00000349 [SR] Cannot repair member file [l:36{18}]"System.Drawing.dll" of NetFx-System.Drawing, Version = 6.1.7601.18763, pA = PROCESSOR_ARCHITECTURE_AMD64 (9), Culture neutral, VersionScope neutral, PublicKeyToken = {l:8 b:b03f5f7f11d50a3a}, Type neutral, TypeName neutral, PublicKey neutral in the store, file is missing
	Line 3464: 2015-07-11 19:59:15, Info                  CSI    0000034a [SR] Cannot repair member file [l:34{17}]"System.Design.dll" of NetFx-System.Design, Version = 6.1.7601.18763, pA = PROCESSOR_ARCHITECTURE_AMD64 (9), Culture neutral, VersionScope neutral, PublicKeyToken = {l:8 b:b03f5f7f11d50a3a}, Type neutral, TypeName neutral, PublicKey neutral in the store, file is missing
	Line 3465: 2015-07-11 19:59:15, Info                  CSI    0000034b [SR] Cannot repair member file [l:48{24}]"System.Windows.Forms.dll" of NetFx-System.Windows.Forms, Version = 6.1.7601.18763, pA = PROCESSOR_ARCHITECTURE_AMD64 (9), Culture neutral, VersionScope neutral, PublicKeyToken = {l:8 b:b03f5f7f11d50a3a}, Type neutral, TypeName neutral, PublicKey neutral in the store, file is missing
	Line 3466: 2015-07-11 19:59:15, Info                  CSI    0000034c [SR] Cannot repair member file [l:48{24}]"System.Windows.Forms.dll" of System.Windows.Forms, Version = 6.1.7601.18763, pA = PROCESSOR_ARCHITECTURE_MSIL (8), Culture neutral, VersionScope neutral, PublicKeyToken = {l:8 b:b77a5c561934e089}, Type neutral, TypeName neutral, PublicKey neutral in the store, file is missing
	Line 3467: 2015-07-11 19:59:15, Info                  CSI    0000034d [SR] Cannot repair member file [l:36{18}]"System.Drawing.dll" of System.Drawing, Version = 6.1.7601.18763, pA = PROCESSOR_ARCHITECTURE_MSIL (8), Culture neutral, VersionScope neutral, PublicKeyToken = {l:8 b:b03f5f7f11d50a3a}, Type neutral, TypeName neutral, PublicKey neutral in the store, file is missing
	Line 3468: 2015-07-11 19:59:15, Info                  CSI    0000034e [SR] Cannot repair member file [l:34{17}]"System.Design.dll" of System.Design, Version = 6.1.7601.18763, pA = PROCESSOR_ARCHITECTURE_MSIL (8), Culture neutral, VersionScope neutral, PublicKeyToken = {l:8 b:b03f5f7f11d50a3a}, Type neutral, TypeName neutral, PublicKey neutral in the store, file is missing

I'll post a fix protocol when I can get to it.

I've uploaded a file - sghae.zip - to my OneDrive at Noel's OneDrive
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:\sghae
hit the enter key - if you get a 'Not Found' error try
DIR D:\sghae
or
DIR E:\sghae



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



XCOPY <drive>:\sghae <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