Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: Windows 7 suddenly stopped booting.

15 Feb 2013   #1
FixUnknowErrors

Windows 7, Windows XP
 
 
Windows 7 suddenly stopped booting.

Hi!

In this form I hope to solve PC errors, thanks for the help everyone!

I've a lot of PCs, all of whom have Windows 7 Enterprise and XP dual boot.

Nowadays, suddenly in many PCs both the OSs stopped booting, but I'll query about Windows 7 in this forum.

When Windows 7 starts to boot, as soon as the 'glasses' of the Windows logo appears, Windows 7 reboots.

On booting from safe mode, the restart happens after classpnp.sys is loading/loaded. I tried renaming that file, but then the restart happens on disk.sys, on moving that file too, it happens with fvevol.sys.

I tried to enabling boot logging (from F8), but there's no ntbtlog file in the Windows installation directory.

Please help me solve this PC problem!


My System SpecsSystem Spec
.
21 Feb 2013   #2
Bumpkin

Windows 7 Home Premium 64bit
 
 

Welcome to SevenForums!

You mentioned you have many PC's with the same problem. The first thing I would look for is any updates that were installed on the machines shortly before the problems started.

If the PC's have System Restore active you might want to boot using a Install or Repair disc and restore to an earlier date.

Also try running Startup Repair, Startup Repair You may have to run it three times, booting between each run.

I try to never touch any machines that are dual boot, sorry I don't really have a lot of suggestions.
My System SpecsSystem Spec
21 Feb 2013   #3
gregrocker

 

Work through these steps for Troubleshooting Windows 7 Failure to Start
My System SpecsSystem Spec
.

03 Mar 2013   #4
FixUnknowErrors

Windows 7, Windows XP
 
 

Sorry for the late response.

I was trying to fix some other errors.

I've tried all of what you've suggested, but there're no improvements; however I diagnosed the error code for which Windows 7 was not booting -- 0x7b, or boot device not accessible.

I suspect, for some reason, the driver configuration or the storage drivers which Windows 7 loads at startup have changed (maybe cause of a virus attack or a bad user); so how to I 'redetect' and enable the required drivers or enable all drivers? I'm talking about stuff in this place --

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services

Here I can see various chipset names with keys named 'start' to enable or disable them.
My System SpecsSystem Spec
03 Mar 2013   #5
gregrocker

 

What disinfection did you do from boot? What did it find?

What were the results of Startup Repair and SFC /SCANNOW Run in Command Prompt at Boot?
My System SpecsSystem Spec
03 Mar 2013   #6
FixUnknowErrors

Windows 7, Windows XP
 
 

Quote   Quote: Originally Posted by gregrocker View Post
What disinfection did you do from boot? What did it find?

What were the results of Startup Repair and SFC /SCANNOW Run in Command Prompt at Boot?
There was no infection (the PCs don't have any Internet connection) and SFC showed no bad files.
My System SpecsSystem Spec
08 Mar 2013   #7
FixUnknowErrors

Windows 7, Windows XP
 
 
"A disk read error occurred" after changing partitions.

Hi!

After recent drive changes to my PC (split up a drive into 2), it wont boot.

I get "A disk read error occurred" followed by a alt+cntrl+del to reboot message.

I tried to fix the installation using the Windows 7 installation disk by repair startup, but nothing happened.
My System SpecsSystem Spec
08 Mar 2013   #8
gregrocker

 

You split what exactly into two? Two separate HD's? Where is the Win7 partition in all of this? Is there a 100mb System Reserved partition and what happened to it?

Make sure the Win7 HD is set first to boot in BIOS setup, and is correctly detected under storage devices there.

Easiest at this point if you boot into free Partition Wizard bootable CD to take camera snaps of the full drive map and all listings. We'll be able to see what's happened much easier.

The 100mb or System Reserved should be marked Active, then run Partition Wizard Rebuild MBR - Video Help. If it fails to boot run Startup Repair - Run up to 3 Separate Times
My System SpecsSystem Spec
08 Mar 2013   #9
FixUnknowErrors

Windows 7, Windows XP
 
 

That was a separate problem; this once is a separate one.

Anyway, don't restore that thread; I don't need it anymore.

I'd to 'reformat' again to fix this issue; there's no system reserve or boot partition in this setup. There's just 1 HDD which the BIOS can boot from and as stated before, I did do startup repair and fixmbr.
My System SpecsSystem Spec
08 Mar 2013   #10
gregrocker

 

Then boot the Win7 DVD, during Custom Install delete all partitions and create/format new as shown in Steps 6/7 in Clean Install Windows 7.

Are you still using Win7 Enterprise and if so how is it being activated? It is meant or business or large organizations usually adminstered by an IT dept.
My System SpecsSystem Spec
Reply

 Windows 7 suddenly stopped booting.




Thread Tools Search this Thread
Search this Thread:

Advanced Search




Similar help and support threads
Thread Forum
Keyboard suddenly stopped working once Windows 7 launches
Hello windows gurus. I believe this is a setting problem, but can't figure it out. Dell Studio 1749 laptop running win7 pro 64 I was browsing the internet with IE10, had a bunch of other stuff open (xcel, quickbooks, other software). All of a sudden, I must of hit some kind of key combo,...
General Discussion
Windows has stopped booting. Advice needed please!
My PC has two SATA drives, for storage, and two 128GB SSDs. One of the SSDs has Microsoft Flight Simulator (FS9) installed on it. The second is divided into two partitions: the first has the O/S, the second Microsoft Flight Simulator X (FSX). The first sign of trouble was when aircraft fuselage...
General Discussion
Need help ASAP, HP laptop suddenly stopped booting
So here's the deal, my GF's 3 year old HP laptop, a Pavilion dv6000 series, suddenly stopped booting correctly yesterday, every time it boots, a message appears saying: If I press enter, it then shows the OS I want to load, when I select Windows 7 Home Premium, the same message appears. ...
BSOD Help and Support
Windows suddenly stopped showing the screen of the running programme.
Hi, This is just a minor thing but I really want to get it fixed. Recently I bought a new laptop dell xps15 and its windows 7 home premium 64bit. I really like it and its got some really special function. For example when you put your mouse cursor on the icon on the taskbar, it shows...
General Discussion
Windows Stopped Booting
I have two HDs on my desktop PC and Win 7 installed on both of them. Recently there have been issues when trying to load either copy of windows. One tells me there is disk inconsistencies and the disk needs to be checked. The other loads up the startup repair and tells me it's been repaired and...
General Discussion
Windows 7 stopped booting; Can't repair.
I searched the threads for an existing post and I couldn't find one that matched my problem. Sorry if a solution has already been posted somewhere. I have a new Acer 1410 w/ 4GB of DDR2 memory and a 1.6 CULV processor. It came with Vista Home Premium installed, but I downloaded Windows 7...
General Discussion


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 15:13.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App