Troubleshooting is a form of problem solving that uses logical, systematic steps to solve the problem.

learn more… | top users | synonyms

6
votes
4answers
1k views

Why are Microsoft based programs unable to resolve host names?

When I go to Google by IP I get: When I go to Google by domain name I get: This is confirmed by Windows Live Messenger: However, Firefox just works fine: When I do a DNS lookup I get this ...
5
votes
2answers
2k views

What to do when machine fails a Prime95 stress test?

In an effort to diagnose the cause of random resets and freezes I have been running a series of stress tests on my two year old computer. Thus far the machine has passed nine hours of the Prime95 ...
5
votes
1answer
3k views

How can I view the active threads of a running program?

I know I can see all running processes in Task Manager. But how can I see the single threads that run inside these processes?
5
votes
4answers
1k views

PC freezes after repeated clicking noises

I have an oldish PC (Athlon XP 2200, WinXP). Every time I switch it on, I hear a loud "click" first of all, and when it is shut down, again a click is the last sound I hear. Lately it started to ...
4
votes
4answers
754 views

Mac OS X Leopard Kernel Panics getting absurd

Today Mac OS X kernel panicked twice on me. The first time, I got this log. The second time, I got this log. A few minutes ago, iTunes started sounding blocky, after quitting FireFox everything went ...
3
votes
3answers
713 views

How can I be sure that the motherboard is dead and it's not another issue?

So I have and old computer with and Intel D101GGC motherboard and a pentium 4 cpu and award bios, with a long repeating beep and not passing POST. I tried: RAM checking, they are good and working ...
3
votes
4answers
5k views

What is causing the atrocious performance of my Macbook pro?

I have a Macbook pro, both of which are evincing awful performance for day to day tasks. I'd like to know what is causing it, or failing that, how to diagnose this performance issue more effectively. ...
3
votes
2answers
5k views

What is an XPerf alternative for Linux and Mac OS X?

XPerf is a tool that allows you to take a detailed trace of various system activity like CPU, I/O and more... Because of it's detail you can see stack trace counts, disk position offset graphs, ...
3
votes
2answers
9k views

Why would sound suddenly stop working on Windows 7?

I'm running Windows 7 RTM on a laptop and sometime between 7pm and 9:30pm tonight my sound stopped working. I was away from the computer at the time and watched a youtube video with sound just before ...
3
votes
5answers
10k views

Robocopy permission denied

Robocopy is preinstalled with Windows 7. I've used it many times in the past. I tried to copy a folder to a remote share with robocopy c:\source "\\server\share\path" /s /r:2 /w:2` As a result I ...
2
votes
3answers
1k views

Why is notepad++ blocking my autohotkey shortcuts?

I have a series of keyboard shortcuts defined in my autohotkey script. Currently, none of them work whenever notepad++ has focus. The script is loaded as usual. The keyboard shortcuts (mostly stuff ...
1
vote
1answer
3k views

How can I view the call stack of a running process/thread?

Someone asked me to get a call stack or stack trace of a running process so that he could analyze it for me. How can I get that information?
1
vote
3answers
1k views

Error installing Windows SDK (not related to VS2010)

Just like people that had VisualStudio 2010 previously installed (which I don't), I also had problems installing the Windows SKD 7.1 in my Windows 7 x64 machine. Basically it would fail without a ...
1
vote
4answers
14k views

How can I solve Canon MX870 printer only printing blank pages?

I have a Canon MX870 printer which I have connected to a Windows Vista laptop via a USB connection. Whether I print or copy, the result is the same: blank pages. The result is the same when I use a ...
1
vote
3answers
493 views

Intermittent lockups, unable to diagnose in over a year

Here's a real doosie; I may just give my firstborn child to whomever helps me solve this problem. In July 2008, I assembled what would be my desktop computer for graduate school. Here are the specs ...
1
vote
2answers
620 views

Why won't my computer boot?

My computer was not booting any more (black screen, no beeps). I tried to remove the RAM and boot and again, black screen, no beeps. Does that mean that my motherboard is dead? I have an old ASUS ...
0
votes
1answer
974 views

VLC Media Player - Extremely long delays before some DVDs play / show any menu

With some DVDs there's a long delay before a movie begins. No menus, nothing. With a couple of movies it's an extremely long delay (For example Hollow Man finally shows a menu after about 7.5 minutes ...
0
votes
1answer
743 views

Wifi signal changes over time

I have a trouble about my wireless router signal. My laptop is 25-30 feet (~8 meters) away from the router. There are two walls between them. Windows reports signal strength is two bars, and inSSIDer ...
0
votes
4answers
54k views

Dlink DIR-615 suddenly stops working - Orange internet light

I unplugged my Dlink DIR-615 router last night from the wall due to a storm rolling in. I've done this countless times, no problem. However, when I went to plug it in and use the internet today, ...
8
votes
6answers
13k views

Why does restarting/resetting the router work?

So, I'm a technology guy and sometimes I have to troubleshoot a home network, including my own. I make sure the wires are in securely and that the lights suggest there's an actual internet connection. ...
7
votes
5answers
10k views

Copy and Paste from Virtual PC has stopped working

Up until the last week I was able to copy and paste text from my virtual PC (VPC) to my host machine, however I tried it today with no success...it doesn't error it will just paste whatever is in the ...
5
votes
3answers
4k views

Windows XP doesn't actually recursively change attributes

This should probably go into the question about Windows Annoyances, but can anyone explain why this happens, and how to fix it? I right-click on a folder, select properties, and uncheck the ...
3
votes
2answers
2k views

Why does CPU Time for the System Idle Process increase *faster* than the wall clock?

My computer has been up for 30 min but task manager shows that CPU Time for System Idle Process at 1:30 plus. Every second it advances another 3 or sometimes 4 seconds. The machine is also running, ...
3
votes
3answers
510 views

Building My First Computer And Suprise It Isn't Working

I've had many years of experience working on and around computers, but this was my first foray into building one completely from scratch. So far that foray has been a disaster. My rig is completely ...
3
votes
1answer
12k views

Why does my laptop shut down on its own?

My laptop shuts down. It happened several times so far, and there is a pattern; after I leave it for an hour or so, power saving activates, and then I start using it again for 10 - 15 minutes when ...
3
votes
7answers
1k views

Windows XP - Blue Screen

I have a Dell Latitude D810 I found in our IT storage in basement (computer graveyard) that I was going to use for parts, specifically the keyboard. When I found it, it had a note on it "Blue Screen, ...
3
votes
4answers
4k views

“Show hidden files” option is not working

OK, I know this is the very basic thing that goes with Windows, but I am asking it here in search of answer. I put my pendrive and it autoruns. This changed the show hidden files option off, I mean I ...
2
votes
0answers
1k views

Fixing a broken NTVDM

Problem: About a week ago, the NTVDM on an XP installation broke. Symptoms: The first symptom was that a 16-bit executable that is run during an auto-run batch file would hang and peg the CPU at ...
2
votes
4answers
9k views

Can't access certain web sites - reset router, any ideas?

EDIT: This problem was resolved by my ISP - had to do with damaged fiber in one of their locations. Thanks to everyone that helped. Not sure if this is the right site (I'm a StackOverflow user) ...
2
votes
1answer
591 views

Why won't Firefox recognize application keyboard shortcuts created in Mac OS X System Preferences?

I go into System Preferences, open the Keyboard & Mouse pane, and create keyboard shortcuts for various Firefox menu items in the application keyboard shortcuts section. When I load Firefox, the ...
2
votes
3answers
2k views

Best way to determine source of home network slow downs?

I have a cable modem with a standard Linksys wrt54g wireless connection attached to it. There are about eight wireless devices in the house attached through this network. The devices include a Mac, ...
1
vote
3answers
490 views

Finding and fixing Blue Screens of Death (BSOD) on a damaged operating system from another OS [duplicate]

Possible Duplicate: What to do if my computer is infected by a virus or a malware? Last night I got a rootkit in my Windows 7. I think it's the gromozon rootkit (I'm not sure). After ...
1
vote
3answers
2k views

Can't login into Fedora 14 (XFCE) desktop. For the second time

I'm experiencing a problem with my Fedora 14 XFCE spin, which doesn't seem to let me pass the login screen: I enter my password for my user record, authentication passes (no 'Authentication Failure' ...
1
vote
2answers
246 views

Figuring out which PC part is faulty

I have an odd scenario and I'm having trouble figuring out which is the faulty component. First of all, the video doesn't work, monitor says it's not getting a signal. Monitor's not faulty (works ...
1
vote
2answers
1k views

Video card not detected in POST on initial boot

I have a minor problem with my desktop computer after cleaning it out for dust. When I first boot up the computer, the video card does not get detected so I can't see anything. In POST, I'm getting ...
1
vote
1answer
356 views

Laptop won't start

My macbook pro won't turn on. There's just no power... nothing. When I put the charger in, it acts strangely. The orange light sometimes turns into green. My laptop is new, so I highly doubt there is ...
1
vote
1answer
4k views

Eee PC won't boot from USB

I have an Asus Eee PC 901. I want to install Win7 on it and at the same time, re-partition it into one large drive (it's currently complaining about HDD space issues). I've downloaded a Win7 ISO and ...
1
vote
1answer
6k views

Stop Windows 7 from installing some updates which aren't working? [duplicate]

Possible Duplicates: Windows Update Failure Prevent Windows 7 from installing a “critical” updates that crashes the system. My parents Dell Zino (running 64-bit Windows 7) has ...
1
vote
2answers
3k views

How to get an HP and Canon printer to work in Snow Leopard?

After installing Snow Leopard onto my Mac Pro, I found I was unable to print to either one of my printers, and HP LaserJet, or a Canon iR C3220-C1. So how do you get them to print again? I'm ...
1
vote
4answers
5k views

WinTV PVR not working in Windows 7 (WinTV-PVR USB)

My Hauppauge WinTV-pvr USB does not work on Windows 7 Any ideas on how to fix this?
0
votes
1answer
155 views

Diagnosing random computer crashes

I have been attempting to diagnose random computer crashes for a few days, and have been unsuccessful so far. I had a desktop that I build a year and a half ago which I ran Linux on. I never had ...
0
votes
1answer
7k views

Windows 7 and 8.0 bug: Network icon is marked as “no internet access”

When does windows mark network connection icon as having no internet access? I have internet access, but the icon says I don't. If I run troubleshooter, it finds no any problems. But the icon still ...
0
votes
2answers
772 views

Two routers on network

I just had an incident where a router died and I went to replace it and entered what I thought were the same settings as the original, but I just can't seem to get this to work. Let me start by ...
0
votes
1answer
1k views

No video output from motherboard. How to debug this?

I have assembled the following system: Intel g530 ASUS p8h61 m lx Corsair 2 GB WD 250 GB Raidmax 500w The system turns on but I don't receive any video output on the screen. I tried the ...
0
votes
3answers
459 views

What can I do if my system crashes frequently? [duplicate]

I bought an assembled PC in June, 2011. The configuration is Intel Core i3-540 H55TC motherboard 4 GB RAM Hitachi 1TB hard disk XFX 5450HD graphic card and Samsung 22" monitor After only 2 months ...
0
votes
2answers
704 views

How to find what is causing Windows 7 Desktop pause

Windows 7 64 bit. Been in use approx 2 years since last rebuild. Recently, system is misbehaving. Specifically, on bootup, I get the login screen. I login, I get my desktop wallpapers (2 ...
0
votes
1answer
2k views

Windows Vista can only boot into safe mode

I've got a Dell XPS M1730 that will only boot into safe mode. Since I get a black screen when windows should load after the BIOS loads. I suspect this is a software problem only since I can boot into ...
0
votes
2answers
3k views

Toshiba P775-S7215 with a broken wireless button?

I'm troubleshooting a wireless connectivity problem on a Toshiba P775-S7215. The wireless seems to be stuck "Off". Pressing the wireless button (located to the right of the power button) causes it ...
0
votes
1answer
587 views

How can I troubleshoot a Rockbox Utility installation?

I'm trying to install Rockbox on my sansa e260 v2 because it's no longer working properly and I thought I might as well try Rockbox before chucking it out. The problem is that I can charge it fully, ...
0
votes
3answers
155 views

what to do if computer is blocking antivirus/antimalware updates

I'm currently using a public computer that has no antivirus installed so I installed avast free, and I have here a portable edition of super antispyware. But those 2 cannot seem to update. Regedit ...