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windows 2008 R2 halted on startup

Posted on 2010-09-14
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Last Modified: 2012-05-10
Dear Experts

i have installed windows 2008 R2 server hosted on it exchange 2010 SP1 services (HUB+CAS)  we have faced some normal problems in our exchange services and try to start and fix it (normal) then we restart the OS after restart the system is halted and stop everytime i restart i try to checkdesk and check the bad sectors if there but no problems is found

i try to start the system with safe mode it stopped and restart at CLASSPNP.SYS

anybody can help me what i can do if there any command help to resolve this issue or is there anyway to reinstall the OS with the same configuration and settings coz you know the exchange may be encouterd error or problems if i reinstall it again .

Any Advise ???

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Question by:asfourcrystal
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LVL 17

Expert Comment

by:James Haywood
ID: 33670136
Have you tried booting into Recovery Mode from the Windows DVD?

You could try this command once in recovery mode rename c:\windows\system32\drivers\classpnp.sys classpnp.old

It should allow you at least into safemode.
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Author Comment

by:asfourcrystal
ID: 33670232
thanks for your response

how i can boot into recovery mode while you know the windows 2008 server is going directly to the installation and setup screen??

is there a way you can learn it to me ????
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LVL 13

Expert Comment

by:Greg Hejl
ID: 33681105
it sounds as if the install dvd is not recognizing the os installed.

have you performed hardware diagnostics?  what hardware platform are you on?
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LVL 17

Expert Comment

by:James Haywood
ID: 33681223
Once you select the language you want to install the next screen should have a 'Repair your computer' option in the bottom left corner. From there you should be able to select your installation and go into a command prompt
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asfourcrystal earned 0 total points
ID: 33707000
dear all

thanks for your replys and response

i will close this question coz i reinstalled the OS again and start the installation for exchange 2010 with recovery mode to restore the roles that installed in this server.

thanks a lot again for yours effort
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