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Windows 7: Win 7 64bit version issue


07 Mar 2010   #1

Windows 7 Ultimate (6.1.7600) 32bit
 
 
Win 7 64bit version issue

I have an MSI gaming laptop (Model: GX720). It came with Windows 7 32bit and I decided to install the Windows 7 64bit version. My system is capable of running the 64bit version of Windows 7 (According to Performance Information and Tools and Windows 7 upgrade advisor). I tried installing Windows 7 64bit and when it finishes it hangs on "Starting Windows logo", I noticed that the HDD's flash light stops flashing, I left it there for about 10 minutes and nothing. I also tried "safe mode" and I noticed it hangs on "CLASSPNP.SYS".

I have installed 32bit from the same DVD and it installs successfully. Only the 64bit version seems to fail, but, only on my laptop because on my mom's, my brother's, and my girlfriend's laptop -64bit and 32bit works perfectly with the same DVD I'm using to install my 64bit version. My system's specs are:

-Intel® 45nm Montevina Core™ 2 Duo Processors P7350 2.0GHz - 2.4GHz 3MB Cashe 1066MHz FSB (Centrino 2)
-4.00GB DDR2-800MHz Dual Channel Memory
-NVIDIA® GeForce®130M-GT 512MB DDR3 + Turbo Cache - 17" WXGA (1600 x 900) TFT display ACV
-SATA Hardrive 320GB

Any ideas? Thank you.

My System SpecsSystem Spec
.

07 Mar 2010   #2

Windows 7 Enterprise x64 SP1, Ubuntu 11.04 x64
 
 

Googling "CLASSPNP.SYS" and windows 7 finds lots of links about BSoD's and failed boots. Sadly, there don't seem to be any solid fixes, but there are some suggestions. Make sure your BIOS settings are set to "Default" is one of them.

Also, I had this issue when I tried to put 8 Gig of ram in my VAIO SR290 notebook. Win 7 x64 wouldn't boot up, and I couldn't successfully re-install it. x64 Ubuntu worked fine with 8 Gigs and Win 7 32 bit worked fine with 8 Gigs installed.

I took out 2 Gigs and all was well. Win 7 x64 worked fine with 6 Gig. You could try removing some ram and see what happens.
My System SpecsSystem Spec
07 Mar 2010   #3

Windows 7 Ultimate x86-64
 
 

Run chkdsk and the Short DST of Seagate Seatools. Report back.
My System SpecsSystem Spec
.


14 Mar 2010   #4

Windows 7 Ultimate (6.1.7600) 32bit
 
 

Quote   Quote: Originally Posted by Frostmourne View Post
Run chkdsk and the Short DST of Seagate Seatools. Report back.
Nothing. It didn't work. I called MSI and they said is runs 64bit (Of course), but they just haven't tested MSI systems much. My only option is to call Microsoft and see what they say. This has something to do with my hardware but I don't know what is causing the OS not to load and hangs on "Starting Windows".
My System SpecsSystem Spec
14 Mar 2010   #5

Windows 7 Ultimate x86-64
 
 

Quote   Quote: Originally Posted by reynal888 View Post
Quote   Quote: Originally Posted by Frostmourne View Post
Run chkdsk and the Short DST of Seagate Seatools. Report back.
Nothing. It didn't work. I called MSI and they said is runs 64bit (Of course), but they just haven't tested MSI systems much. My only option is to call Microsoft and see what they say. This has something to do with my hardware but I don't know what is causing the OS not to load and hangs on "Starting Windows".
What didn't work?
My System SpecsSystem Spec
14 Mar 2010   #6

windows ultimate 7 64 bit
 
 

try disabling the graphics and booting up i had same issue with my 220gt
My System SpecsSystem Spec
15 Mar 2010   #7

Windows 7 Ultimate (6.1.7600) 32bit
 
 

Quote   Quote: Originally Posted by Frostmourne View Post
Quote   Quote: Originally Posted by reynal888 View Post
Quote   Quote: Originally Posted by Frostmourne View Post
Run chkdsk and the Short DST of Seagate Seatools. Report back.
Nothing. It didn't work. I called MSI and they said is runs 64bit (Of course), but they just haven't tested MSI systems much. My only option is to call Microsoft and see what they say. This has something to do with my hardware but I don't know what is causing the OS not to load and hangs on "Starting Windows".
What didn't work?
I did a "chkdsk" and the didn't fix it. And the Short DST of Seagate Seatools, I have no idea how to do that. I believe it's something with my hard-drive. But what could it be? Like I mentioned before, the HDD's light stops flashing when "Starting Windows" shows up. MSI hasn't really tested 64bit on their system much, so they "can't" help me as in for now.
My System SpecsSystem Spec
15 Mar 2010   #8

Windows 7 Ultimate (6.1.7600) 32bit
 
 

Quote   Quote: Originally Posted by totalguy View Post
try disabling the graphics and booting up i had same issue with my 220gt
I don't know how to disable the graphics, a little tip would be appreciated, I have been away from the computer world, so I need at least some basic details. Thank you.
My System SpecsSystem Spec
15 Mar 2010   #9

Windows 7 Ultimate x86-64
 
 

For Seatools, open up the program, then run the Short DST under tests.
My System SpecsSystem Spec
16 Mar 2010   #10

Windows 7 Ultimate (6.1.7600) 32bit
 
 

Quote   Quote: Originally Posted by Frostmourne View Post
For Seatools, open up the program, then run the Short DST under tests.
Short DST - Pass.

Thank you for trying to help me. But I think is has something to do with my hardware.
My System SpecsSystem Spec
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