You receive Symantec Endpoint Protection Installer Error 1304:"Error writing to file C:\WINDOWS\System32\Drivers\symndis.sys. Verify that you have access to that directory".

Products

• Endpoint Protection

Issue/Introduction

You receive Symantec Endpoint Protection Installer Error 1304:
"Error writing to file C:\WINDOWS\System32\Drivers\symndis.sys.
Verify that you have access to that directory".

Resolution

To resolve this problem, the Administrators Group must have write access to the %windir%\system32\drivers folder. To give the Administrators Group write access, follow these steps:

1. Start your computer by using an administrator account.
Click Start >> Run
Type CMD.EXE
Click OK.

At the Prompt, in the Command Window:
Step 1
Type the following:
cacls.exe "%windir%\system32\drivers" /G BUILTIN\Administrators:F
Press ENTER.
Answer "Y" to the Are you Sure (Y/N)? question

Step 2
Type the following:
cacls.exe "%windir%\system32\drivers" /G System:F
Press ENTER
Answer "Y" to the Are you Sure (Y/N)? question

Step 3
Type the following:
cacls.exe "%ALLUSERSPROFILE%\Documents" /G BUILTIN\Users:R
Press ENTER

Answer "Y" to the Are you Sure (Y/N)? question

Restart the Symantec Endpoint Protection installation.

References
http://support.microsoft.com/kb/813649