Access denied error while trying to install graphics drivers

Question

Hello,
I have a new toshiba laptop P70-A. I have installed windows 7 and the pc was working excellent up until now. Noticed yesterday that the nvidia automated system failed to install the new update. When I tried to install the new driver manually, even from the
device manager, I got the access denied message. 
A day now wasted reading all the possible causes and solutions but with no luck. Read all the forums and all the posts, tried almost everything. Below youll find everything I tried as a solution and failed.
1.Disabled UAC
2.Enabled the administrator account and trying to take control from there
3.Run the subinacl and the reset.cmd
4.Tried manually to take control the folder windows (and access denied while changing the rights)
5. Scanned the system with everything there is available ( Kaspersky, MalwareBytes, RegCurePro, Tuneup Utilities, CCleaner) The system came out clean.
6. Tried restoring the system to an earlier time (got again access denied error code 0x80070005)
7. Checked all the group policies (all seem to be fine)
8. Run a script to take immediate ownership over all of C:
TAKEOWN /A /F C:
then the next one
TAKEOWN /F C: 
9. With subinacl I run all the above scripts... (still nothing changed)
@echo off
title Resetting ACLs...
echo.
echo Determine whether we are on an 32 or 64 bit machine
echo.
if "%PROCESSOR_ARCHITECTURE%"=="x86" if "%PROCESSOR_ARCHITEW6432%"=="" goto x86
set ProgramFilesPath=%ProgramFiles(x86)%
goto startResetting
:x86
set ProgramFilesPath=%ProgramFiles%
:startResetting
echo.
cd /d "%ProgramFilesPath%\Windows Resource Kits\Tools"
echo. 
echo Resetting ACLs...
echo (this may take several minutes to complete)
echo. 
echo IMPORTANT NOTE: For this script to run correctly, you must change
echo the values named Athena to be the Windows user account that
echo you are logged in with.
echo.
echo ==========================================================================
echo. 
echo. 
subinacl /subkeyreg HKEY_CURRENT_USER /grant=administrators=f /grant=system=f /grant=restricted=r /grant=Athena=f /setowner=administrators > %temp%\subinacl_output.txt
echo. 
echo. 
subinacl /keyreg HKEY_CURRENT_USER /grant=administrators=f /grant=system=f /grant=restricted=r /grant=Athena=f /setowner=administrators >> %temp%\subinacl_output.txt
echo. 
echo. 
subinacl /subkeyreg HKEY_LOCAL_MACHINE /grant=administrators=f /grant=system=f /grant=users=r /grant=everyone=r /grant=restricted=r /setowner=administrators >> %temp%\subinacl_output.txt
echo. 
echo. 
subinacl /keyreg HKEY_LOCAL_MACHINE /grant=administrators=f /grant=system=f /grant=users=r /grant=everyone=r /grant=restricted=r /setowner=administrators >> %temp%\subinacl_output.txt
echo. 
echo. 
subinacl /subkeyreg HKEY_CLASSES_ROOT /grant=administrators=f /grant=system=f /grant=users=r /setowner=administrators >> %temp%\subinacl_output.txt
echo. 
echo. 
subinacl /keyreg HKEY_CLASSES_ROOT /grant=administrators=f /grant=system=f /grant=users=r /setowner=administrators >> %temp%\subinacl_output.txt
echo. 
echo. 
echo System Drive...
subinacl /subdirectories %ProgramFilesPath%\ /grant=administrators=f /grant=system=f /grant=users=e >> %temp%\subinacl_output.txt
echo. 
echo. 
echo Windows Directory...
subinacl /subdirectories %windir%\ /grant=administrators=f /grant=system=f /grant=users=e >> %temp%\subinacl_output.txt
echo. 
echo. 
echo ==========================================================================
echo. 
echo FINISHED.
echo. 
echo Press any key to exit . . .
pause >NUL
Im frustrated really... ANY help at all would be really appreciated.
Thanks in Advance and sorry for the long post
Athena 

Answer 1

Hello,
Thanks for the replies, i much appreciate it. I tried all of the above with no luck again. Safe mode allows me though to install drivers but thats reverting the moment im entering windows. Im always running commands and programs as a administrator or in
the Admin enabled account.
It seems the problem is solved today. Via tune up utilities I disabled most of the startup programs and services and it seems that 1 service is causing this issue. Although I havent played much with the disabled services but 3 remain to be checked. One of
the three is causing this.
Thanks again guys and Ill keep you posted about the soft. conflict.
Athena