Use this tag for questions where a computer fails to successfully load ("boot up") the operating system.

learn more… | top users | synonyms

8
votes
5answers
17k views

How do I fix a boot process that broke because of a failed hard drive? (Windows 7)

I used Windows XP for years, before I was able to get my hands on Windows 7 RC, which I bought a new HDD for, and setup to dual-boot. About a month ago, Windows XP started acting funny, and I thought ...
6
votes
3answers
3k views

Windows 7 boot failure after update

Installed some windows 7 updates today, mostly just optional fixes and it installed an update to my IntelliType or IntelliPoint drivers (Keyboard & Mouse). It asked to reboot, computer gets to ...
5
votes
1answer
2k views

Windows 8 Hyper-V fails to boot Windows XP ISO

So I recently installed Windows 8 Professional on my computer and today I enabled Hyper-V with the intention of creating a Windows XP virtual machine. I created the virtual machine with standard ...
4
votes
2answers
4k views

A computer that fails to boot if certain USB devices are plugged in

I don't have an active problem with this but I am curious. Over time, my repair work has lead me to experience many instances (repeatable and reliable ones) where a computer (desktop, laptop, every ...
4
votes
2answers
888 views

HD prevents me from booting Live CD

Short version: BSOD on Windows last night, cannot boot to Win or a live Linux CD, moving HD to another comp won't boot. Update: Had a little success attaching hd to other comps via USB (or plugging ...
4
votes
1answer
920 views

My Macbook Pro doesn't boot up

My Macbook Pro suddenly stopped booting up properly. The following images are the images of the boot logs of the normal bootup and my bootup. I kind of know that it's not a hard drive problem because ...
3
votes
2answers
498 views

a pci-e card doesn't work with the other two graphic cards

A PC machine in the company has three 16x pci-e slots, let's call them A B C (A is closest to the CPU, C is furthest). There has been two graphic cards installed in it (gtx680 in A and gtx560 in C, ...
3
votes
1answer
92 views

My laptop fails to POST or boot consistently

I'm sporting a Dell Inspiron 15 (M5030), the specs for which can be found here. Over time I've made three upgrades to the laptop. I've installed: An Intel Advanced-N 6235, wifi+bluetooth 4.0 chip ...
3
votes
1answer
1k views

Acer Revo R3600 Won't POST

I powered off my Revo this afternoon to change the power strip, plugged in a second USB hard drive and booted it up, only to find the machine won't POST. It's been running happily as an HTPC for at ...
2
votes
2answers
2k views

Why does my Samsung Chronos 7 not boot anymore after installing Ubuntu?

I was just installing ubuntu on my new samsung chronos 7 NP700Z3C, the laptop was stucked at booting ubuntu so I pushed shutdown button for 5 seconds and turned it off. Now it does not boot. It just ...
2
votes
1answer
1k views

MacBook Pro (OSX Lion) - shutdown automatically before reaching login screen

When I try to lunch my MacBook Pro I can see a progress bar on loading screen. It goes to 1/15 or something like this and then it shut downs - I cannot reach even login screen. It happened to me 2 ...
2
votes
2answers
1k views

My computer stays stuck on the acer screen

I have an Acer Aspire 5532. The night before it began to have problems i just shut the lid for sleep mode. The next day i go to turn it on, and the black Acer screen comes up but it freezes there. I ...
2
votes
0answers
44 views

PSU and motherboard power up failure [duplicate]

My girlfriend's computer is not booting any more. Here is a list of the hardware and the tests I've made so far: MB: Asus P5QL-E PSU: Thermaltake Toughpower 600W First failure: the PC was off, ...
2
votes
1answer
1k views

ASUS ZENBOOK UX51VZ: BIOS fail after 204 update

I got some days ago a ZENBOOK UX51VZ, I hated Windows 8 therefor I successfully installed Windows 7 with all the drivers, everything was working fine; then I stupidly decided to update the BIOS to the ...
2
votes
0answers
526 views

Windows 7 fails to start after shut down

I have Windows 7 Home Premium 64-bit on a 2-year old Lenovo SL510 laptop. This is the current issue: Windows fails to start after the computer shuts down. It gets to the Windows logo load screen and ...
2
votes
0answers
527 views

Brand new Asus U500VZ bricked - can anyone shed light on why? [closed]

EDIT: Replaced question with this one. I was wrestling with this, got to a certain point, changed one BIOS setting (I turned off CMS support), and the laptop died. Blank screen on power on, keyboard ...
2
votes
1answer
450 views

System won't boot if I connect SATA hard disk

I had an old PC with an Atom processor, two SATA hard disks with 40 GB and 160 GB each. Recently I upgraded my PC, got a Gigabyte H61M DS2 Motherboard, 2 GB of RAM and Core I3 processor. But ...
2
votes
0answers
45 views

Windows Defender Update KB915597 (Definition 1.135.415.0) > BSOD > Computer No Longer Starts [duplicate]

Possible Duplicate: A Windows Update Prevented Live Discs From Working? First off I'll state my system specs. Acer Aspire M1100 Windows Vista Home Basic 32bit OEM 2 Gigs of DDR2 ram ...
2
votes
1answer
587 views

Fujitsu Siemens Laptop Problems

I've got a Fujitsu Siemens Laptop running XP and have had problems booting. At first the message was to do with corrupt registry files, System, Security etc. I replaced all of the files with ones ...
2
votes
1answer
217 views

HDD from Mid-2009 MacBook Pro works OUTSIDE laptop, but not INSIDE

Leading up to the problem: I was working late one night on a Keynote presentation. My battery ran out, and the computer did that hibernation thing it does when there's no battery power. I got my ...
1
vote
1answer
1k views

Windows 2000 Pro repair, does not fix, cannot clean install

I have a client machine (windows 2000 Pro) that fails to start up. The startup screen appears and the loading bar reaches 100% (full) then the system reboots. Starting in safe mode does no better.. ...
1
vote
6answers
268 views

Computer (Usually) Fails to Start, Clock Resets, Then is Great

Perhaps 3 years ago I built a nice gaming rig from new parts. About 2.5 years ago, it started to have trouble booting up and continues to have troubles to this day. Typically, the first time it is ...
1
vote
1answer
282 views

Server died in power outage - now won't boot

I've recently set up Ubuntu Server on an old machine I had around the house. It worked really well and I even got it hooked up to a domain I had, but as I was only toying around with the idea of ...
1
vote
2answers
74 views

Strange boot problems on 6 month old setup

I've already exhausted my knowledge on this one, so forgive me if this post is a bit long. I built a computer 6 months ago for my wife and it worked fine until last week. Then it randomly shut down ...
1
vote
3answers
3k views

Computer won't boot after applying thermal paste

I don't know what's wrong. My computer was on a bench and I used thermal paste (probably too much of it at first) and my computer still worked. But after I put everything back in the tower it didn't ...
1
vote
1answer
122 views

Troubleshooting a failure to boot

I have a system that has been working fine for a long time, and has suddenly decided not to boot. By not booting, I mean nothing at all -- no post screen, no nothing. It powers up, the fans spin, ...
1
vote
2answers
21k views

How do I restore Windows 7 Master Boot Disk Record without CD Drive? [duplicate]

Possible Duplicate: Restore Win 7 MBR without Recovery/Install Disc This is how to restore Windows 7 MBR (relies on CD Drive). But I need to do this with a netbook, how do I restore the MBR ...
1
vote
1answer
736 views

64bit Dell stuck at login/splash screen

System: Dell Inspiron 1110 64bit, Windows 7. Problem: When booting it'll reach the login/splash screen. Well almost, it shows the blue windows 7 splash screen image, the mouse (with loading symbol ...
1
vote
1answer
377 views

4 memory modules of the same kind not working?

I am trying to install 2 extra pairs of 2GB on my server, the motherboard is a GA-EP41-UD3L which is said to support up to 8GB and has 4 memory slots. I have 4 memories of 2 GB being all of it: ...
1
vote
0answers
19 views

Diagnostic puzzle - laptop randomly fails at OS startup

I have a problem which has been bothering me for a year now and I would be grateful if somebody could help me. I will try to be as brief and concise as possible: Laptop: HP Probook 4525s, HDD 160GB, ...
1
vote
0answers
28 views

Boot failure caused by drive

Whenever I boot with my slave drive plugged in, I get the message "Reboot and Select proper boot device or Insert boot media in selected boot device" When I unplug my slave drive (2nd hard drive) the ...
1
vote
0answers
62 views

Computer crashed for good

My one-year-old custom PC was crashing when I played Battlefield for 5 minutes or Counter-Strike for 20 minutes. Now it keeps crashing whenever I power it up. (It doesn't loop.) Debugging steps I ...
1
vote
0answers
150 views

Windows 8 0xe000009 - Cannot boot from DVD as well

Yesterday, I connected a phone (Nokia Lumia 800) of a friend to my computer. I then had to restart the computer. But during the restart, it got stuck to the black screen just before the login screen. ...
1
vote
1answer
145 views

Computer doesn't boot after new psu installation

I've purchased a new PSU (Chieftec APS-550C) and installed it into my computer. After that my computer refuses to boot up: it spins up all the fans and drives, stays in this state for ~10 seconds ...
1
vote
0answers
81 views

Laptop (hp dv4 media edition) not starting windows

My windows was running smoothly during an update of anti virus. After the download it required a restart and did that automatically. Once it restarted the computer, the machine got stuck at the ...
1
vote
0answers
121 views

GRUB: ELF sectors outside core

I just recently installed Xubuntu 12.04. Instantly after installing it I updated all my packages, however one package, grub-pc, failed to install. I'm not sure what caused it to fail, but here is the ...
1
vote
0answers
537 views

Toshiba Equium A110-252 laptop won't boot Windows

I have a Toshiba Equium A110-252 laptop (XP Pro) which stopped booting a couple of weeks ago. The symptoms are that the laptop would display its DOS Toshiba splash screen, then the Windows (XP) boot ...
1
vote
1answer
467 views

Windows 7 install corrupt after update

How do I fix a corrupt Windows 7 installation by hooking it up to a brand new Windows 7 install? Installed some Windows 7 yesterday, mostly just optional fixes and it installed an update to my ...
1
vote
1answer
1k views

“Windows could not connect to the System Event Notification Service service”

Yesterday, everything was fine. I didn't install anything, add any device or changed any setting that I can recall. I shut the system off cleanly and went to sleep. Obviously, that means my fully ...
0
votes
2answers
31 views

PC turns on(sends signal to LCD and gives BIOS beep) after random number of attempts

My PC worked well until one time about 6 months ago the LCD lost signal and I have to restart the it. Since then when I want to turn on the computer and push the power button I do not get signal on ...
0
votes
2answers
939 views

Beep codes - 2 short; 4 long

I'm getting these beep codes - (2 short, pause, 4 short, long pause) - repeating. I couldn't find the meaning of these codes on the internet, the PC model is Omron NSA-CPU01-E. Does anyone know what ...
0
votes
1answer
79 views

Laptop would not boot up suddenly w/out first opening dvd-drive? ('Cannot find operataing system' error mssg)

My MS Vista 64 Sony VAIO laptop suddenly gives an error when I try to boot up: Cannot find operating system' or some such wording. I hear a clicking sound which sounds like it's coming from the dvd ...
0
votes
3answers
406 views

BSOD -> Disk Boot Failure -> Normal Start

Just finished putting together a new PC and am having a very unwelcome issue at startup. While this doesn't happend ever time, it happens most of the time. Computer is running normally Reboot ...
0
votes
1answer
119 views

What would cause a machine not to output a graphics signal?

I've got a PC which I built myself some time ago. It was working fine. Then we moved house - the PC was moved by the movers. After the move it worked a few times. At one point, it refused to come ...
0
votes
1answer
250 views

How to test for harddisk damage preventing it from booting?

I've experienced some problems with the booting of my laptop and I'm now unable to boot from the harddisk. In particular when booting I get this error message: No bootable device -- insert boot disk ...
0
votes
1answer
372 views

My Toshiba Satellite will not boot after windows 8 installation (online)

I've tired to install windows 8 onto my Toshiba Satellite L745-S4210. Installing windows 8 was fine no errors (It told me to unstall some Toshiba programs) so after it was all done, I restarted my ...
0
votes
1answer
285 views

Possible SSD failure after overclock

I (foolishly) attempted an overclock on my newly-upgraded (new mobo and SSD) rig, and now I cannot boot. The relevant components: AMD Phenom II X4 965 - 3.4Ghz (overclocked 10%) Kingston HyperX DDR3 ...
0
votes
1answer
313 views

Windows 8 boot loop after mounting from linux

I installed the release version of windows 8 professional (which I got through my university). I installed Ubuntu on another drive so I can select which drive to boot in the BIOS. All was well... ...
0
votes
1answer
143 views

Laptop does not boot?

I'm not very savvy when it comes to laptops. I have two identical laptops, old school Dell Latitude D410's. One works just fine, and the other does not boot at all. I have tried various things ...
0
votes
1answer
30 views

Graphics card issues? Green lines and distortion on my screens

I turned on my computer this morning and it had a bunch of vertical green artefacts and some horizontal distortions on text. You can see what it looks like I assume it's the graphics card but I'm ...