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• How can I repair a Windows 7 Bootloader without a Window 7 Disc?

  - by Solignis

  I have a bit of a problem, I got my boss's laptop next to me and it won't boot. He told me it had hard crashed so he... you are going to love this... removed the battery. So when it put it back in and turned on the machine it gets past POST ("The Toshiba Screen") but I just get a flashing white prompt then it disappears and sits there. I don't have the original CDs. What can I do? I do have an Ubuntu CD and a few other Linux CDs like Gparted and Clonezilla. Is there anything I can do?

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• Is UEFI more or less vulnerable than Legacy BIOS?

  - by Eric

  Is UEFI more secure than BIOS on a Windows 8.1 machine? Is UEFI vulnerable to malware in ways that Legacy BIOS is not? Is it correct that UEFI can connect to the internet before the OS (or anti-virus program) has loaded? On some boards, UEFI settings can be changed in Windows. Do these things affect PC security? I have read that BIOS on an MBR disc can be vulnerable to 'rootkits' There have been reports that suggest UEFI secure boot may not be infallible. Is UEFI better at defending against malware than BIOS?

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• DVD/CD-ROM drives stop working in Windows 7

  - by Marcus L

  All of a sudden Windows 7 (64 bit) lost all DVD and CD-ROM drives. It worked fine for about a month, then I don't know what happened. At first I thought it was a hardware problem - that my DVD-ROM had malfunctioned. But then I realized that Windows 7 no longer picked up on Demon Tools drives either. I can boot both Windows installation and Knoppix from the DVD-drive. So it seems to be a general problem with "disc-media". When trying to reinstall the hardware DVD-ROM Windows recognizes the drive (though sometimes simply label it as "CD-ROM drive"), but then says something went wrong - with from what I understand is a default error message (39), claiming the driver has become corrupt. I've tried every Microsoft recommended action, i.e. uninstall, reinstall, look for driver updates etc. etc., but with no luck. Any tip most welcome!

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• I tried installing Ubuntu 10.04 and I got this message - any ideas on what to do?

  - by user41926

  No root file system defined. Please correct this from the partition menu. This message shows up when I first boot into Ubuntu after the installation. I installed it by mounting the ISO with Daemon Tools, and I just did the default Wubi installation. I keep reading everywhere that I need to choose my installation directory, but I don't get any option to do that. These are all the options I get for installation directory. I have a C and D partition on my drive, and I tried installing it on both and no luck either way. Any ideas?

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• Make services not start automatically after reboot (as they require access to an encrypted partition)

  - by Binary255

  Hi, I use Ubuntu Server 10.04. I more or less only want the server to be accessible over SSH after a reboot. I will then login and mount the encrypted partition myself, after which I start the services which uses it. How would I go about setting something like that up? (My first idea was to have everything except /boot in an encrypted LVM, but I never got logging in through SSH and mounting the LVM to work. Initramfs was a bit too complicated for me. Otherwise I think this would have been the best solution.)

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• Failing Seagate HDD - Not Recognised

  - by thefragileomen

  I am having a look at a friend's computer which contains a 500GB Seagate HDD. Unfortunately the HDD is not recognised by the BIOS menu and it beeps 11 times upon powerup. I've moved the HDD to another laptop but the problem remains. I've downloaded SeaTools for DOS (Seagate's Diagnostic tool) but unfortunately to no avail and the disc remains unseen when using this DOS boot disc. The HDD is only 6 months old so I'm very surprised at this but it appears a common problem with Seagate 2.5" HDDs as well as other HDDs manufactured by Seagate. I intend to try it in an external caddy on Thursday when back in work and also through a forensic writeblocker but just wondering if anyone has any other suggestions? I am of the opinion it is some chip on the HDD board which prevents it spinning due to a fault. If so, I've lost to deactivate this just so I can simply recover the data on the drive and start with a new disc. Thanks

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• Was Windows 95 an Operating System?

  - by shantnu

  This question maybe a bit historical, but we didn't have Superuser at the time. Around 2000 when I was starting my Computer science degree, a subject was Operating systems. The teacher asked us to list a few OS. I said Windows 95. I was immediately shot down. Windows 95 wasn't on OS, as it used DOS to boot up. The actual OS was DOS, Win 95 was just a graphical wrapper around it. I pointed that all trade magazines called Win95 an OS, but was told that they were run by laymen, and as a professional, I should know better. DOS was the only OS from Microsoft, at least till Win2K came out later that year. So 12 years on, I'm still not sure. Could Win 95 be considered an OS?

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• Dell Precision 670 no booting

  - by fristson

  Our dell running xp did not boot one day and was making a beep code I had a hard time finding on the internet. It was one of the RAM sticks so i replaced it. Before that i removed the motherboard battery to see if there was a problem with the battery. Now at start up it tells me that No Logical Drives Found and then BIOS not installed!. I have read over alot of post here and other places but everyone is talking about installation of the OS. I just want it to start with what it had. Please help.

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• Multi-monitor resolution and position settings lost after reboot

  - by SoftDeveloper

  I've had two 1280x1024 monitors running for years on an nVidia 8800GT card with no problems. I've now replaced one monitor with a new 2560x1440 one. The card seems to support both fine, however every time I reboot the resolutions and monitor positions revert to the old settings. I've tried upgrading, downgrading, stripping out and reinstalling many versions of the nvidia drivers to no avail. Logging in as another user doesn't help - same problem. Booting into another another OS (Win7 64) works OK, so it is just this OS installation. During boot up everything looks fine (ie native 2450x1440 res) until the nVidia control panel or something is loaded which flips it back into the old mode. I have no old saved nvidia profiles. I can't find anything in the registry relating to these old settings. Its driving me crazy having to set resolutions and realign monitors on every reboot! Can anybody help?

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• Ubuntu Wired network(ethernet does not work)

  - by user36777

  It was working just fine, until the other day I yanked it out. The wireless works just fine on the same router. If I login to a windows 7 instance on this dual boot laptop then the ehternet works just fine. So it's not a hardware, cable or router issue. The card even gets an ip, but I can't connect to the internet. Here are the details from route, iptables, ifconfig, ping etc. Any ideas? I have been struggling with this for day, none seems to have an answer. http://pastie.org/954816

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• Ubuntu reset network configuration

  - by user1103294

  When I boot up my ubuntu server, it cannot connect to my wireless network anymore. It says "waiting for network configuration" for 60 seconds, boots up, but no wireless. I suspect it's because of the following reasons. I used to connect to a wireless connection named 2WIRE555, password: 123abc But then I upgraded my connection and my new wireless connection was named 2WIRE444, password:111111 Being lazy, I simply renamed 2WIRE555 to 2WIRE444 and changed the password accordingly. I was hoping this would work but ever since then my network configurations is messed up. So back to the issue, how do I reset my network configurations for my Ubuntu 11.10 server?

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• Disaster - partitions lost, data seemingly alive, how to recover?

  - by a2h

  I've used TestDisk and it's written my old partition structure of a ~20GiB partition for Vista, ~25GiB partition for 7 (but it now shows up as unallocated) and a ~400GiB partition for documents. What it's meant to be is a 30GiB partition for 7, some unallocated space, and a ~400GiB partition for documents. So currently, I have access to all my documents, but not any of the programs I've installed on C:, or AppData, because my boot partition is now supposedly a 20GB vista partition. I've tried using my Windows 7 install disc's repair function, but that did nothing beyond wasting about 10 minutes of my time. I'm currently posting from an Ubuntu live CD. Any help?

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• Asus Z8NA-D6, not powering up/no signal for monitor

  - by s093294

  I have a Asus Z8NA-D6 motherboard. Been running fine so far with one E5504 Xeon processor. I have added another Xeon E5504 CPU to the second slot and it will not power up (or there is no signal to the monitor). The status lights turn on as normal. no error led. Nothing happens other then the leds start and both cpus/fans power up. HDD power up. I tried clearing CMOS. Any sugestions? http://www.asus.com/Server_Workstation/Server_Motherboards/Z8NAD6/#download Update. Removing ram for second cpu makes it boot atleast. itboots with memory pluged in for cpu 1. (2 4gb modules) when addin one more to the second cpu it still boots but bios only see the 2 blocks at cpu 1)

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• Is Clonezilla a good option for a daily batch-file-based backup of a Windows XP PC?

  - by rossmcm

  Having just been through the process of rebuilding a Windows XP desktop machine when the disk died, I'm anxious to make it a lot less painful. I didn't lose any data, but reinstalling everything took ages. Clonezilla seems to be a highly mentioned free backup tool. How easy would it be to implement the following: a nightly unattended backup of the desktop's disk image to another network machine (or a second drive in the machine), hopefully with compression. restore from that image using USB boot media. so that if I come in to work and find the hard drive has tanked, it is just a matter of replacing the dead drive with a new one, booting from the USB stick, choosing the image to restore, and then finding something else to do for an hour or two. When it is finished I would hopefully be back to where I was.

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• Very small image for rebuilds

  - by Deon

  I worked at a place last year that had a very small image for Windows XP re-builds. It was two Norton GHO files, totalling about 2-3 GB. This is how it worked: Boot into Norton Ghost Map to the network share where the images lived Apply the image to the workstation Reboot It would then load into Windows Setup Enter the Domain Admin credentials so it can join the domain That's it... it would then reboot into Windows and the image was complete. How did they make an image so small? Did they perhaps kick off a Windows install and create an image then? I particularly liked how it required no user input other than a domain admin login.

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• Copied XEN vm to new host - boots up asking to fix the HD (win2003 guest)

  - by Mister IT Guru

  I have an old box running CentOS 5.4, and XEN. It has a 2003 Guest that I wish to move over to another CentOS box running XEN. I stopped the machine, and have SCP'd the HD image files of the guest to the new host. I ran md5sum on the files, and they are identical. When I configure a new Guest, it fires up, but windows fails to boot asking to fix the system instead. The HD are identical, so I'm guessing there is something that I missed. I don't want to go through this procedure, because the system needs to be identical. How can I get one VM to run seamlessly on another host? Any ideas, and comments are 100% appreciated. Thank You

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• Installing linux on computer with Marvell adapter

  - by Seth

  I recently reinstalled my computer and decided that I want to have a native installation of linux side by side with windows (got tired of VMWare). The thing is upon installation (debian) everything goes fine until the disc detection section - linux can't find my western digital 1TB drive (IDE mode). I don't have the installation disc with me now, but I think that when i changed the mode to AHCI everything worked, though Windows couldn't boot so this is not an option. I have a Marvell 91xx controller. Any ideas?

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• Moving to an SSD with Windows 7

  - by Nick Gerakines

  Disclaimer: I've been digging around for a few days and didn't get what I was looking for in terms of answers, so I'm asking here. I've recently purchased an 80g SSD drive to use as my boot up and OS parition. I've got a windows 7 desktop with two 1TB (raid0) disks currently and I'm not sure where to start in terms of copying / moving the OS. I suppose that doing a fresh install isn't out of the question, but I've got an upgrade disk from Vista that I'd have to deal with. Where do I begin?

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• kernel 2.6.36 not booting

  - by Saumitra

  Hi, I m a newbie to kernel programming. I am trying to boot the kernel 2.6.36 on my ECG machine.It was working perfectly on 2.6.33.2. It is getting stuck on this step: ## Booting kernel from Legacy Image at 81000000 ... Image Name: Created: 2010-12-27 5:55:56 UTC Image Type: MIPS Linux Kernel Image (gzip compressed) Data Size: 1974278 Bytes = 1.9 MB Load Address: 80100000 Entry Point: 80104730 Verifying Checksum ... OK Uncompressing Kernel Image ... OK Starting kernel ... After this the system either resets or it hangs. I have also checked the configuration & set it properly.Please let me know.

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• Windows 7 ISO not booting from DVD drive?

  - by chum of chance

  I've downloaded Windows 7 x64 Pro Upgrade from the volume license center. I've also downloaded the Windows 7 USB/DVD download tool. I'll burn it using this tool and while it will show up in Explorer as if the burn worked correctly, when I try to boot to the DVD on startup, I get a "No operating system found" error (this is a newer Lenovo). My Ubuntu Live CD works fine, am I missing something? I read that there's problems if you try to burn a 64bit copy from a 32bit computer, but I'm currently running Win7x64, so that shouldn't be a problem. I've also tried burning with ImgBurn and Windows 7 built ISO burner, no success. Obviously there's a step I'm missing here, what gives?

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• Replacing explorer.exe under Windows 7

  - by Whitey

  A bit of an odd request I gather, but for reasons too deep to go into detail here I need to replace my explorer.exe in the C:\Windows directory. I have tried doing it myself, through the GUI and command prompt (ran as administrator) but I get access denied. It seems that being an admin on your machine is not the highest permission level after all, and only Trusted Installer can modify the file. Does anybody know a way that works? I was about to boot into safe mode and try it but wanted to get some feedback before I do anything in-depth. Thanks.

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• windows 7 partition disappeared

  - by atoMerz

  I have a VPCF2 with windows 7 installed on it. I was working on my computer when on of my drives (D) disappeared. I can see it in Computer Management>Disk Management and it'd marked as Healthy(Primary Partition). When I right click on it the only options that are enabled are Delete Volume and Help. So I cannot assign a drive letter to it (not even in safe mode). I tried System Restore and it failed. I tried to boot the system using ubuntu tha was installed on my system but that fails too because it was installed on partition D. I'm hopeless. What can I do?

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• How to remove AegisP.sys

  - by NinjaCat

  When I boot my laptop, I get the following event in the error log... I cannot tell which service is trying to use the aegisp.sys file or generating this event. Can anyone shed some light? Google is not very helpful with this issue ;) Event Type: Error Event Source: Service Control Manager Event Category: None Event ID: 7000 Date: 8/20/2010 Time: 10:50:03 PM User: N/A Computer: XXX Description: The AEGIS Protocol (IEEE 802.1x) v3.6.0.0 service failed to start due to the following error: The system cannot find the file specified. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

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• Permissions issue on Fedora with separate home partition

  - by Tres

  I am running Fedora 12 and I've setup a partition separate from my root partition to keep shared files and home directories. Now, I've been having permission issues where it says the user cannot chdir into their home directory (/files/home/*). Now, I fixed this originally by chmodding / to 0755 and the home directories also to 0755. And yes, the user is the owner:group of their home directory. Now get this, I didn't change a thing, rebooted, everything still works. Great, right? I boot the server up a day later, and now same ol issue. This is a home server that wasn't on at all at any point in between the working state and non-working state. Also, nothing else was modified. Any ideas? Thanks!

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• Fixing Windows 7 explorer issues

  - by Cegorach

  OK, so here is the problem I'm hoping you guys can help me fix. On my Win7-Ult64 box, my explorer (among other things) has decided not to work. For example, if I try to use a program, say Chrome, to open a folder, I will get the message "Class not registered" (and its not program specific). In the same vein, when I go to Start-Rclick Computer-properties, nothing happens, but I can go to control panel-system properties and it will work. And other items in the control panel do nothing when I click them (and I have a feeling it is all tied together). I have already done multiple virus and spyware sweeps, so I know that isn't the problem. Any suggestions on what could be causing this/how to fix it (short of nuke and boot)?

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