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

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6
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3answers
17k views

wi-fi connection drops periodically for a few seconds

I've read the similar question on wireless connections dropping, but no answer seems to apply to my case I have configured the wi-fi lan of my router to broadcast sid and use WPA-PSK. Every few ...
6
votes
4answers
42k views

Partition table corrupted (USB flash drive)

It's an 8 GB Patriot thumb drive, which I've used extensively with lots of data. Today, it is detected, but all data is gone: (EDIT at least some data is still there, but the partition table is gone) ...
3
votes
2answers
12k views

Best way to troubleshoot intermittent network outages?

We have a Comcast 50/10 line into our office. We keep seeing very short but sometimes frequent drops in our internet service. It's enough to kick you off of skype and stop any websites from loading, ...
1
vote
2answers
654 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 ...
1
vote
3answers
5k views

Mac Mini won't boot and won't fix

I have one of the original Mac Mini - a PowerPC one - that after the last software update will no boot - it gets to the grey screen and hangs their forever with the 'loading' icon rotating. I've ...
6
votes
4answers
2k 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
3k views

Troubleshooting slow Wi-Fi performance writing to NAS

Setup: a Late 2007 MacBook Pro, running latest OS X 10.6, connects via Wi-Fi access point, ASUS WL-330gE to AFP share on NAS Synology DS508 running under latest DSM 4.0. When doing rsync from the ...
5
votes
3answers
3k 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
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
778 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 ...
4
votes
5answers
19k 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 ...
3
votes
3answers
969 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
5answers
20k 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 ...
3
votes
3answers
6k 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
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 ...
2
votes
1answer
4k 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?
2
votes
4answers
10k 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) ...
1
vote
3answers
2k views

Troubleshooting new computer: shuts down instantly

everybody. I just built my own computer. This is the second time that I have done so, but last time I did so with a friend that was more knowledgeable than I am. The computer is built and everything ...
1
vote
3answers
502 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 ...
0
votes
1answer
1k 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
931 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
66k 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
18k 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
11k 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 ...
4
votes
1answer
7k views

How to set Windows Sound default settings for a device?

In Windows Sound settings, is it possible to set the default settings for a sound playback device, such as the speaker configuration (7.1 vs Stereo) and the "Default Format" (e.g., 24 bit 48000Hz)? ...
4
votes
4answers
5k 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 ...
3
votes
1answer
2k views

Diagnosing Random Computer Freezes [duplicate]

I bought a desktop computer a few months back. About 3 months ago it started freezing at random intervals, sometimes as much as 2-3 times per day, other times as little as once per week. The specs are ...
3
votes
2answers
3k 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
556 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
13k 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, ...
2
votes
1answer
76 views

Why does computer hangs everyday?

My Linux computer hangs every day (sometimes twice a day). It also hangs my home network until the Ethernet cable is unplugged or I reset it. I can`t find any severe exceptions in log. This computer ...
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
1answer
9k views

Computer doesn't start when graphics card plugged in

Symptoms: after changing heatsink on graphics card, computer won't turn on when graphics card is plugged in PCIE slot. When I press the power button, fans move a little bit and that's it. The card ...
2
votes
1answer
624 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
2answers
4k 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 ...
1
vote
3answers
495 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
252 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
2answers
1k views

Windows 7 (64 bit) random crashes and lockups. Please help me troubleshoot the problem

The machine has been randomly freezing and crashing recently. It is a recently new build PC. Freezing The machine would lock up when left for a period of time and then take a long time to respond to ...
1
vote
1answer
362 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
6k 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
261 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 ...