system crashes during booting

Hi, I previously had windows 7 (32 bit)... after installation it was going well...but 2 months later suddenly blue screen problem started to happen quite often... during booting
after the windows logo has been displayed my screen used to appeared black for few seconds & then a blue screen used to appear...containing several messages but i was not able to read the entire thing as it stays for a very few seconds... only one thing i managed to see was "nvlddmkm.sys" error & core dump : 100 . then my pc used to automatically restart....i have tried "Launch Startup Repair", i have tried registry clean softwares,i have also updated my graphics card's(Nvidia Geforce 210) driver... but nothing really benefitted... this problem doesn't appear always but it appears for say 6 out of 10 times during booting & when it happens after the bluescreen & reboot I've noticed gameplaying stutters.. no more smoothness... runs slowly.

initially i had 2 gb ram,recently i installed another 2 gb,so total 4gb ram currently i have... as 32 bit os doesn't detect it so i formatted my system performed a fresh installation of windows 7 64bit.... i thought a format may fix this up but i was wrong... after few days of installation the above problem has started to appear again in the same manner.....

with windows xp i've never experienced such problems..

plz tell me some proper solutions to fix this up.

Please use this tool to update your profile specs

And then use this tool to post all the files here

Hi,according to your advise i've downloaded the tool "SystemInfo.exe" but whenever i've tried to install it an error message named "SystemInfo.exe - .NET Framework Initialization Error" is always being displayed,saying that "To run this application ,you first must install one of the following versions of the .NET Framework: v4.0.30319"... what should i do now????

Well just as it say... install .Net framework V 4.0 or better 4.5

You can also use speccy as well

i've downloaded & run speccy and updated my system specs accordingly.... plz give me proper suggestions....

Thanks in advance...

use this tool to post all the files here

well i've downloaded & run the tool .. but when i press the "GRAB ALL" button the test starts but an error msg comes as given below

the test haults
as ....

right click on SF diag tool and run as administrator

So i run the test by performing one by one at a time...
1.Minidump
error is reported as "Access to the path "C:\Windows\Minidump' is denied." & the test haults..

2.Event Log
error is reported as "Could not find file 'C:\Windows\EventApp.txt' " & the test haults..

3.Update Log
the log file i'm attaching as a text file... please see it..

4.Driver List
error is "Could not find file 'C:\Windows\DriverList.txt" & the test haults.

5.Host
error is "Could not find file 'C:\Windows\system32\drivers\etc\HOSTS' " & the test haults.

6. MSINFO32
At the end of the test comes "System Information -> Access is Denied"


please tell me how to solve the blue screen issue....

thanks in advance

where should i click the right button? if i click the right button on the SF diagnostic tool window(picture on the right) then
nothing is happening...