Can't open Norton 360 ntdll.dll

hi

 

i cant open norton security suite "a program caused the program to stop working correctly"

 

my specs

 

windows 7 home 64 bit 6gb rm

 

i have reformed and same error

 

my log

 

Log Name:      Application
Source:        Application Error
Date:          4/21/2014 3:23:59 PM
Event ID:      1000
Task Category: (100)
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      son-PC
Description:
Faulting application name: N360.exe, version: 12.11.2.6, time stamp: 0x5306df3b
Faulting module name: ntdll.dll, version: 6.1.7601.18247, time stamp: 0x521ea8e7
Exception code: 0xc0000374
Fault offset: 0x000ce753
Faulting process id: 0x1260
Faulting application start time: 0x01cf5d973880e54b
Faulting application path: C:\Program Files (x86)\Norton Security Suite\Engine\21.2.0.38\N360.exe
Faulting module path: C:\Windows\SysWOW64\ntdll.dll
Report Id: 7cd106ae-c98a-11e3-8a2f-082e5f992eab
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Application Error" />
    <EventID Qualifiers="0">1000</EventID>
    <Level>2</Level>
    <Task>100</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2014-04-21T19:23:59.000000000Z" />
    <EventRecordID>4772</EventRecordID>
    <Channel>Application</Channel>
    <Computer>son-PC</Computer>
    <Security />
  </System>
  <EventData>
    <Data>N360.exe</Data>
    <Data>12.11.2.6</Data>
    <Data>5306df3b</Data>
    <Data>ntdll.dll</Data>
    <Data>6.1.7601.18247</Data>
    <Data>521ea8e7</Data>
    <Data>c0000374</Data>
    <Data>000ce753</Data>
    <Data>1260</Data>
    <Data>01cf5d973880e54b</Data>
    <Data>C:\Program Files (x86)\Norton Security Suite\Engine\21.2.0.38\N360.exe</Data>
    <Data>C:\Windows\SysWOW64\ntdll.dll</Data>
    <Data>7cd106ae-c98a-11e3-8a2f-082e5f992eab</Data>
  </EventData>
</Event>

 

please help