BF4 Lockup, requires reboot

1. Open an elevated command prompt as described in the previous step 1.
2. At the command prompt, type the following command, and then press ENTER:

   findstr /c:"[SR]" %windir%\Logs\CBS\CBS.log >"%userprofile%\Desktop\sfcdetails.txt" 

   Note The Sfcdetails.txt file contains details from every time that the System File Checker tool has been run on the computer. The file includes information about files that were not repaired by the System File Checker tool. Verify the date and time entries to determine the problem files that were found the last time that you ran the System File Checker tool.
3. Open the Sfcdetails.txt file from your desktop.
4. The Sfcdetails.txt file uses the following format:
   Date/Time SFC detail
   The following sample log file contains an entry for a file that could not be repaired:

   2007-01-12 12:10:42, Info                  CSI    00000008 [SR] Cannot 
   repair member file [l:34{17}]"Accessibility.dll" of Accessibility, Version = 
   6.0.6000.16386, 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
    

How to manually replace a corrupted system file with a known good copy of the file

After you determine which system file was corrupted and could not be repaired through the detail information in the Sfcdetails.txt file, find where the corrupted file located, and then manually replace the corrupted file with a known good copy of the file. To do this, follow these steps:

Note You may be able to get a known good copy of the system file from another computer that is running the same version of Windows with your computer. You may perform a System File Checker process on that computer to make sure the system file that you intend to copy is a good copy.

1. Take administrative ownership of the corrupted system file. To do this, at an elevated command prompt, copy and then paste (or type) the following command, and then press ENTER:
   takeown /f Path_And_File_Name
   Note The Path_And_File_Name placeholder represents the path and the file name of the corrupted file. For example, type takeown /f C:\windows\system32\jscript.dll. 
   
   
    
2. Grant administrators full access to the corrupted system file. To do this, copy and paste (or type) the following command, and then press ENTER:
   icacls Path_And_File_Name /GRANT ADMINISTRATORS:F
   Note The Path_And_File_Name placeholder represents the path and the file name of the corrupted file. For example, type icacls C:\windows\system32\jscript.dll /grant administrators:F.
   
   
    
3. Replace the corrupted system file with a known good copy of the file. To do this, copy and paste (or type) the following command, and then press ENTER:
   Copy Source_File Destination
   Note The Source_File placeholder represents the path and file name of the known good copy of the file on your computer, and the Destination placeholder represents the path and file name of the corrupted file. For example, type copy E:\temp\jscript.dll C:\windows\system32\jscript.dll.