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Unable To Boot - Ndis.sys Is Corrupt


I ran the upgrade about 6 months ago and my computer has run fine, until yesterday when windows failed to start as described. At first i got the same message in the startup repair and diagnosis log, but after several attempts to start, sometimes i get that same message, and other times i get , under "root cause found:" boot critical file c:windowssystem32driversdis.sys is corrupt
The rest remains the same. I am not running any other os. Any ideas out there on resolution?


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Missing File Ndis.sys

On my windows xp professional ver 2002 service pack 3 the file " ndis.sys " is missing from the c:windowssystem32drivers folder. I have tried to copy the file from c:windowsservicepackfiles folder but this did not help, so i deleted the new file in safe mode. Is there any way to download the correct file from microsoft. I think an anti virus programme deleted the file on me. I think this missing file is causing all my network adapters to display the yellow triangle.

Posted On: 2010-04-02 . View Related Posts . . View 3 Replies .

Problem: Delay On Boot Due To Drivers Files: Ndproxy.sys, Srv.sys, And Vga.sys

Recently installed a fresh copy of windows 7 x86 and x64 in separate instances to see if the problem of a two minute period between the "windows is starting" screen and the desktop. Neither had a visible impact. I looked around online and found how to create a boot log. The following are the drivers/services that could not be installed during my startup:

4 instances of ndproxy. Svs
1 instance of vga.sys (hadn't installed video card driver yet)
1 instance of srv.sys

After installing the necessary drivers and with no alert from the device manager, the boot time is still roughly 2 minutes. Right now i am at a loss on what to do. For reference my avg startup time in xp was around 10 seconds from the windows logo. Any help would greatly be appreciated.


Posted On: 2010-01-23 . View Related Posts . . View 2 Replies .

Cannot Boot Because Of Missing Or Corrupt Driver

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Posted On: 2009-10-26 . View Related Posts . . View 2 Replies .

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So every time i reboot windows 7 ultimate it loads only to the loading screen and then stops. The only way to fix it is to put the dvd in the drive and use bootrec /fixmbr and then reboot and it loads as it should. I have tried rebuilding the file also using bootrec and the same thing happens as soon as i restart the mbr record is corrupt each time. This is a fresh build of windows 7 with a brand new fujitsu hard drive. I checked the hdd and its seems ok. The drive is sata drive running in compatible mode. Now i get no errors it just locks up at the loading screen and sits there forever. So it is really hard to diagnose what is going on.

Posted On: 2010-06-18 . View Related Posts . . View 7 Replies .

Bootmgr File Is Corrupt System Cannot Boot

I have purchased a laptop of acer aspire5545 with compatibility of x64 bit windows with which i got drivers cd only. I had installed windows7 on it and start working. After some time when i shutdown it and restart it start giving error that boot mgr file is corrupt. I shutdown it and after 5or6 hours i again restart it , it starts booting. From that day i am facing that problem. So i gone to service center, they are saying there is no problem, and gave it back. That time it works for two-three hours. Now again it is giving same problem.

I tried to format my system with windows 7 but it gives same problem
I tried tio install windows xp but system hangs

Again and again it is giving me same problem and after sometime it starts working after shutdown and restart it again gives problem. Now please can you suggest me how can i solve this problem. And whether it is hardware problem or not.


Posted On: 2010-03-19 . View Related Posts . . View 5 Replies .

Usbvideo.sys Failure

My windbg told me that my issue is with usbvideo.sys great, but what do i do to resolve this? My laptop is only 4 months old and this same issue has occured four times at irregular intervals. Failure_bucket_id:  x64_0x50_usbvideo!Loadpowerlinefrequency+2eb that was also in the report. I apologize if this isn't enough to go on, im not incredibly tech savvy, tell me what you need to know and ill post it asap. Thank you, original title:  blue screen error, debugged-what do i do now?

Posted On: 2010-04-09 . View Related Posts . . View 4 Replies .

Error - 0x0000003b Nvlddmkm.sys

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I had vista prior but had vista ultimate 64 bit and win 7 home premium won't upgrade so i had to do a clean install. It keeps failing with the blue screen and 0x0000003b nvlddmkm.sys errors over and over. Please don't make me re-install vista, how can i get this to work? I just got my win 7 dvd today.


Posted On: 2009-10-24 . View Related Posts . . View 3 Replies .

Suspected Virus In Disk.sys

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Posted On: 2010-06-05 . View Related Posts . . View 3 Replies .

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I have checked all the message boards but so far there is nothing that has worked. This is the only pc that i have access to that is running windows 7 - all of the rest are on xp. I dont care if i lose the information on my hard drive as it was all backed up before i upgraded to windows 7.


Posted On: 2010-03-17 . View Related Posts . . View 2 Replies .

Every Time I Boot Up I Get Disk Boot Failure Message

I have just installed win7 and every time i boot up i get "disk boot failure" message so i have to put win7 dvd in and go into bois and change boot priority to dvd drive.

Pc spec is quad processor 8 gig of ram three hard drives two dvd drives


Posted On: 2009-10-31 . View Related Posts . . View 3 Replies .

Dual Boot Boot Problem After Resizing Win 7

Boot problem on dual boot after resizing windows 7 (32bit) switched from drive w: to drive g: i have a dual boot system that boots into win 7 (64) (c:drive) or win 7 (32) (w:drive). I needed to increase the size of win7 (64) drive and in order to do so i needed to move the win 7 (32) partition. Now i can still boot into win 7 (64) with no problem but when i boot into win 7 (32) it windows states that it is not a genuine copy and it is actually on drive "g:"! Anyway to change it back to "w:" because i believe this is the problem.

Posted On: 2010-05-24 . View Related Posts . . View 10 Replies .

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I have a problem with two different drives both running win7, one 32 the other drive64, on a dual boot system. I want to pull the win32 drive, but it also has my boot information for the win64 drive. When removed it will not boot. I have been working on this for 5-6 weeks. I want to remove the win7/32 and put the boot image of win7/64 on the second drive.

I booted from the win764 install dvd, and went to there pair your computer. The placethat displays the operating systems installed, none will show. I have tried bootsect from the command prompt. It seems to work, but tells me no partition on the second drive. Or on another attribute used, it can not find the path to the drive. I have tried rebuild bcd, fixmbr, etc.


Posted On: 2010-01-16 . View Related Posts . . View 5 Replies .

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When the computer is running, the actual computer itself sounds fine (hard disk is chattering away) but when going slow and unresponsive it only makes noises every 1-2 seconds, if that makes any sense, as if it's under a really heavy load. Hard to tell because i cant open anything. Ran a system restore, didn't do anything. I need help soon! I suspect a driver issue, but i'm just speculating. Specs: windows 7 home premium 64 bit 6gig ddr3 ram i7-860 cpu ati 5770 gpu


Posted On: 2010-08-12 . View Related Posts . . View 11 Replies .

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Skype 3. 8
Intel proset/wireless
Network monitor 3

I would have solved the problems but when i click ok the installation continued. After 7 hours to finish the upgrade (including downloading 1gb+), i was done ie8 was l sometimes crashing randomly. I partially solved the problem moving to firefox but when i forget i still have the problem now and then. Anyway, i need to fix the blue screen of death problems.

After the win7 upgrade, i upgrade the video drivers nvidea 8400gs, skype, network monitor 3 and the intel proset/wireless drivers. I think the problem is in the intel drivers becasue the bsod is on tcpip.sys. I downloaded the drivers here: http://www.Intel.com/support/wireless/wlan/sb/cs-010623.htm through the automatic detection.

It now find:
Product detected  intel® wireless wifi link 4965agn 
Current intel® proset/wireless wifi connection utility installed  13. 1. 1. 0 

These are two logs that win7 showed me after reboot after 2 different bsod incidents:


Posted On: 2010-03-23 . View Related Posts . . View 6 Replies .

Win 7 Netio.sys Bsod Issues

Win7 netio.sys bsod issues. (Windows memory diagnostic passed succesfully). This is a brand new dell studio 17 with minimal installed software. 5 crashes so far, averaging 1-2 days in between.

Posted On: 2010-06-15 . View Related Posts . . View 8 Replies .

Netw5v64.sys Driver Issue Causes Bsod

I began getting the bsod randomly and frequently. In the time between yesterday until now, i have gotten nearly 30 bsod's. I know enough about computers to pinpoint the problem, and after debugging to the best of my ability, i determined that the driver netw5v64.sys was causing the crash.

Here is my pc info:
Dell inspiron 1525
4 gb memory
2. 4ghz duel core proc.
Integrated intel video card ~ 965chipset (i think this is correct)
280gb harddrive

The crash occurs at random, but only when i am accessing my wireless network adapter
Conditions that have changed that might have caused this:

- Yesterday around 2:00 i connected my computer to a netgear router. I live on a college campus that uses cisco security, but i wanted to broadcast my own wireless direct from an ethernet connection. I disabled dhcp and all router security. It worked and i was then able to connect through the wireless network i created into the school internet.

Other than this i cannot imagine what the problem is, and i cant seem to fix it. I have reinstalled, uninstalled, and updated all the wireless network drivers. I have check internet forms and i have found that a number of people running 64x windows are having this same issue!


Posted On: 2010-01-10 . View Related Posts . . View 4 Replies .

Nvraid.sys Bsod When Drive Added

I have a home built computer that was working wonderfully with windows xp, however windows 7 professional 64 bit has been giving me some headaches.

I did a clean install a few days ago. I can get windows 7 to install perfectly on a single pair of mirrored sata hard drives. I set up my machine with the system and all of my programs on this drive c: everything works great. I keep all of my files on a second set of drives f:.

When i shut down the machine and add in another mirrored raid of two sata hard drives f:, the machine boots up and i can see the f drive and read and write from it for about 2-3 minutes and then consistently bsod's.

The blue screen points to a driver failure. Nvraid.sys driver_irql_not_less_or_equal. I have a .dmp file with the crash but i'm not sure how to share it here.

I'm at a bit of a loss as to what to do at this point. I've tried microsoft tech support and they just threw the problem to nvidia, which i doubt will support this 4+ year old motherboard, but who knows. I may have to go back to xp until this gets ironed out or i upgrade my motherboard.


Posted On: 2009-10-28 . View Related Posts . . View 3 Replies .

Bsod - Usbhub.sys On Shutdown / Hibernate

A few days ago my computer with a recently installed windows 7 build 7100 start getting a bsod every single time i shut it down, restarted it or set it to hibernate. I've tried updating all ubs drivers in device manager but they were all up to date and didn't help. I tried restarting it with not a single usb device plugged in. I normally only have a usb mouse and sometimes a exhd or ipod plugged in, standard stuff. I tried doing my own research for the problem elsewhere but couldn't find any answer.

I also tried windows update and installed these three new optional updates but that failed to make any difference either. What other information do you need about my computer to diagnose the problem?


Posted On: 2009-05-25 . View Related Posts . . View 3 Replies .

Nvlddmkm.sys Driver Causes Blue Screen

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Posted On: 2009-11-21 . View Related Posts . . View 2 Replies .

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I use "usb mouserate switcher 1. 1 (http://www.Softpedia.com/get/tweak/system-tweak/usb-mouserate-switcher. Shtml)" but this log said me when i clic patch "error: could not find a valid sequence! Please use windows' original "usbport.sys"!" It s boring when i want to move slow my mouse it fall to 2hz and that jump some pixels.


Posted On: 2009-08-16 . View Related Posts . . View 2 Replies .

Blue Screen Of Death Pci.sys

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Posted On: 2010-07-31 . View Related Posts . . View 12 Replies .

Athrxusb.sys Driver Problem Driver_irql_not_less_or_equal

I have been having a terrible time with a new computer i have purchased, it is the infamous driver_irql_not_less_or_equal. After searching the internet relentlessly for a solution to this problem, i have decided to post my own question, because it seems that this error is caused by faulty drivers or not properly installed drivers. I then searched for the driver named in the bsod, athrxusb.sys, and found it belongs to my smcwusb-g, part number 99-012084-552.

I have followed the procedures of many forums before deciding to post, i have tried uninstalling old drivers, moving the wireless adapter to different usb ports, and reinstalling the drivers. I also used programs such as device doctor to locate old and outdated drivers to replace them.
I would just go buy another wireless adapter, but i am worried that the driver, athrxusb.sys, will be required for any wireless adapter, no matter which i buy. I have seen that this error spans across multiple versions of windows operating systems, why not release a patch to fix this error? Is there one? If there is can it become more readily available to the public?

Ultimately i would like to fix the solution, buying a new device is not out of the option, i just want my pc to be able to connect to the internet without causing a bsod and wireless is the only option.


Posted On: 2010-02-06 . View Related Posts . . View 6 Replies .

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Im wondering if somebody could please give me some knowledge on this clfs.sys thats causing my shutdowns to go over 1min and provide a solution to stop it taking so long.

Posted On: 2012-01-18 . View Related Posts . . View 3 Replies .

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Posted On: 2009-11-14 . View Related Posts . . View 2 Replies .

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Also with the original drive disconnected i get a "ntldr not found. Press control-alt-delete to restart. "I believe mybios is the problem. I have flashed it with the newest bios i could find, (dates from 2005) but no sata adjustments in the bios. How can i make the bios know that i want the sata drive to be the primary boot drive?

Or is there a way to trick the bios into thinking that it is an ide drive? As it is, the computer is recognizing the sata drive as a scsi drive. I read somewhere that this is not a problem. In summary, i want my system to boot from the sata drive. I would like to reformat the original drive.


Posted On: 2010-08-17 . View Related Posts . . View 6 Replies .

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The installation could not complete and one possible solution to the problem was to stop the antivirus program. At that moment i noticed that the avast antivirus was hanging and i was not able to kill the process. So i restarted the system, using f8 to get the safe start option so that i was able to uninstall the antivirus program. I then tried to install another antivirus application and when installation was almost finished got the message that it was unable to complete installation. I tried to install another backup solution (paragon), but also this one failed. On the other hand, i was able to install the firefox browser.


Posted On: 2010-07-31 . View Related Posts . . View 2 Replies .

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