Your post is a little confusing.
"after taking internet"; what does that mean?
"After starting up it is showing lsass.exe and 1sass.exe pop up". What is popping up, when, and what is the full error message?
"The machine is showing deadly blue screen with all it's messages" What messages? Is there a "STOP Error:" code? If so, what is it?
1sass.exe is often related to malware, and if the lsass.exe that s shown is located anywhere other than C:\Windows\System32 then it is also a virus.
If you can start the system into Safe Mode, run your anti-virus from there. You may also want to follow Grif's advice in his post here;
I have windows 98 as well as windows XP installed in my machine in different drive(Motherboard-VIA P4M266a NDMx series V7.1). Currently after taking internet I am facing lots of problem.
1. After starting up it is showing lsass.exe and 1sass.exe pop up
2. The machine is showing deadly blue screen with all its messages
and a technical information at last. It shows sometimes when I
tried to run antivirus or tried to update a driver and so on.
3. When the deadly blue screen shows I restart my machine. Then it
shows below options :
i) Start Windows in safe mode
ii) Start Windows using dos/command prompt
iii) Start with latest working setup that worked properly.
iv) Start windows normally.
When I try to run normally or option (iii) it simply hangs.
When I try to run using dos/command prompt it just shows some
system files mostly from D:/Windows/system32/drivers folders and
Please help what should I do? I have formatted the D drive(XP) and again reinstalled it but still facing all those.