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

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4
votes
2answers
12k views

Windows 10 high memory usage (unknown reason)

Well few days ago I updated my pc to windows 10. However, after some use my PC started to slow down until its was impossible to use, it was due to high memory usage. After restart, everything came ...
0
votes
2answers
85 views
+50

Laptop shuts down instead of going into sleep mode when I send it to sleep

I'm using an Asus laptop. It's more than a year old. This has been going on for maybe a month. I've looked into all the basic settings but can't find what's causing the problem. Here are the settings: ...
0
votes
0answers
8 views

Older app works only when running from compatibilty troubleshooter

I have updated to Windows 10 form Windows 8.1 and Corel Photopaint 12 will not run with error: Failed to install ISKernel files I have tried setting compatibility of the shortcut to Windows 7 ...
-1
votes
0answers
32 views

Windows Update stopped working

"Windows could not search for new updates" is the message I get when I click on check for updates. It lists the error codes: WindowsUpdate_80072EFD and WindowsUpdate_80072EFE. I have used the ...
0
votes
0answers
604 views

Windows 10 ad-hoc ICS (Internet Connection Sharing) not working

I upgraded to windows 10, and now I cant use my ICS ( Internet Connection Sharing ) via ad hoc. Doing the same as in windows 8.1: netsh wlan set hostednetwork mode=allow ssid=network_name ...
4
votes
5answers
32k views

Macbook shutting off randomly with battery still full?

I have an aluminum unibody Macbook from about a year and a half ago. Recently, it has started shutting itself off as if the battery had died at random, still full percentages. At say, 75 percent, ...
1
vote
0answers
545 views

HP MSS EX485 no drives lights, no physical drive found

My HP EX485 stopped working about a week ago. It has one factory Seagate 750GB and 2 WD 1.0 TB drives with the factory processor. I removed all but the factory installed Seagate 750gb, Barracuda ...
6
votes
1answer
2k views

Static / snow on external display when waking up Mac

I have a Philips 222E display connected via a mini-DP to DVI adapter and DVI cable to a Macbook Air (mid-2011). Every time that the MBA wakes from sleep, the display shows this static: The static ...
0
votes
3answers
2k views

Why does my screen turn black after installing ATI on Ubuntu 10.04?

I'm having a problem installing the drivers for my video card. I've just finished installing the driver, rebooted the OS, and the monitor starts up in energy saving mode and doesn't boot Ubuntu. What ...
1
vote
7answers
10k views

Why does my computer only sometimes recognize my hard disk drive?

Whenever I turn on my computer it is a crap shoot whether or not the BIOS message says that my SATA 320 Gb seagate drive has been recognised. I have jiggled the wires around and I don't think it is a ...
5
votes
1answer
3k views

Monitor image became offset to the right. How to fix this?

Got this odd problem where the image in the monitor is offset to the right. It’s offset a lot. I have an external monitor, which is connected to a laptop. I don’t use the laptop’s display, only the ...
-1
votes
0answers
22 views

8-year-old Computer Having Trouble Booting Fedora 17

TL;DR My 3-year-old Fedora 17 system on an 8-year-old computer crashes with a kernel panic, screen flickers, memory test from Live CD fails. What is the issue? My computer is 8 years old now, and I ...
0
votes
3answers
3k views

Not getting any output from video card or onboard- is my motherboard dead?

Probably a lost cause, but I thought I'd ask before I start replacing hardware. I have a desktop that's been boxed up for a while, and when I set it back up I wasn't getting any video output. I ...
2
votes
4answers
3k views

Keyboard not working after upgrading to Windows 10

I have a lenovo z500 series laptop.. I've been using windows 8.1 up until now and my keyboard worked fine no problem but today i upgraded to Windows 10 my keyboard ua not working now... I checked ...
2
votes
2answers
3k views

Dell inspiron n5010 has failed to recognize AC adapter

Recently my dell inspiron n5010 has failed to recognize my 90W adapter (despite powering it just fine). Full error message: "The AC power adapter wattage and type cannot be determined. the ...
2
votes
2answers
522 views

How to find last-added USB device in Windows?

Is there a way to find the last-added USB device in Windows (perhaps something like "dmesg" for Windows)? I'm plugging the USB device in, and it makes the sound of connection, but when I check ...
0
votes
1answer
30 views

How to restore the original firmware of a router?

An internet service provider (ISP) has locked my router and changed its software so that I can not choose another ISP. My router works for that ISP only and it does not work for any Other ISP. I ...
2
votes
0answers
893 views

cannot access network shares on domain - export all network settings in windows 7 for troubleshooting

I am on a domain computer running Windows 7 Enterprise. I am having trouble accessing network drives and network shares (including network printers). I am able to access the internet fine. I have ...
2
votes
0answers
54 views

Desktop PC has stopped powering up

I've gone through the two existing questions I found that seemed to the closes to my situation, tried most of the proposed fixes, and I'm still not getting any results. Those questions where: ...
0
votes
1answer
4k views

Windows 7 Installer keeps popping up at startup

I have Solidworks Student Edition installed on an external drive. Every time I turn on my computer, a Windows Installer box pops up to install Solidworks, and I have to press Cancel. How can I stop ...
13
votes
15answers
49k views

Windows 7: Wi-Fi connection drops intermittently - only returns after “Troubleshoot connection” resets the adapter

On our laptop (running Windows 7) the Wi-Fi connection drops intermittently. Symptoms: Connectivity is suddenly lost, and the "signal strenght" indicator in the tray shows zero strength and a yellow ...
1
vote
1answer
27 views

Determining the purpose of a Windows process [closed]

In the course of diagnosing a problem, our attention is often drawn to a running process shown in Task Manager. This raises questions such as, "Is this process legitimate?" or, "What does this ...
0
votes
1answer
3k views

How to define when machine was connected to WiFi in Windows logs?

I'm looking for a ways to define time when WiFi connection was established/enabled/disabled on Windows 7 machine through logs. The reason I'm looking for it is that I have laptops in LAN which ...
2
votes
1answer
2k views

Web page does not display properly

I have a problem with one of my computers. It does not display any website properly. The background clouds on some websites do not show up, the layout of some websites are not properly displayed. And ...
2
votes
2answers
4k views

Wifi network undetectable on a Lenovo G470

I have a WPA2 secured network with a visible SSID at home that works perfectly fine with a Dell laptop,a HP netbook and sundry mobile phones. When I try connecting my sister's Lenovo G470, it refuses ...
1
vote
2answers
4k views

Why is my Focusrite Scarlett 2i4 no longer recognized?

Last night, after a year of continued and problem free use, I discovered that my computer no longer detects my Scarlett 2i4. My DAW (Ableton Live 9.1) says that no audio devices are detected and even ...
0
votes
1answer
1k views

Bluetooth driver download

My Bluetooth peripheral device doesn't work, how can I fix it or download the driver? My PC is a HP-Pavilion dv6, I am using Windows 7 X64.
0
votes
1answer
49 views

PC won't turn on

My new PC broke down completely yesterday. This was my first ever PC build, I installed the components myself, but I couldn't figure out the wiring/cables so I went off to a tech-guy for help. He put ...
1
vote
0answers
31 views

Toshiba L755 won't start after BIOS update fail?

I bought a bigger battery and read that I had to do an update for it to work. Anyway the BIOS was updating and half way through the power went out and now it will no start. The led's turn on showing ...
5
votes
2answers
547 views

Why can I hear the cursor flashing on my screen through my headphones?

As well as just about everything else that changes on the screen, from loading a webpage, scrolling a window, typing, moving the mouse around, etc.? I have the headphones on, and I can hear it all. ...
0
votes
1answer
47 views

A variety of PC problems including blue screens and failure to boot

I recently rebuilt my gaming PC. I used the same hard drives and ram, but everything else is brand new. I reinstalled windows and everything was great for about a month. Recently, I had a BSOD ...
13
votes
3answers
3k views

What does this dtrace error mean?

When running iotop -C 5 12 on my late-2010 Macbook Pro (10.6.7) I get repeated instances of this error: dtrace: error on enabled probe ID 5 (ID 19507: io:mach_kernel:buf_strategy:start): illegal ...
0
votes
0answers
33 views

Computer power supply fault

This is my first post to the site; it's been a great resource to me in both my professional and personal lives. It's about time I registered! So I went to boot up my desktop this morning and nothing ...
1
vote
0answers
18 views

PC Won't Sustain Power

I've been using this system almost every day for the past 7 months. It has worked completely fine with no indication of error at all, but now it will not power on. Whether I use the casr button, the ...
0
votes
2answers
2k views

Why is the Windows Help & Support screen not working?

When I click on the icon in the Start Menu, the error is: The Windows Help And Support can't start A problem has occured with Windows Help And Support Center. For online help visit Windows ...
0
votes
0answers
25 views

After leaving my PC alone for as little as 5 minutes, I come back to an error where the enter key seems to be constantly pressed

This is a bit of a strange question, so I will try and give as much information as I can. Let me start by saying that the enter key on my keyboard is absolutely fine, physically. I am writing this ...
-2
votes
3answers
89 views

Windows defender isn't working

My Windows defender was turned off because of preinstalled antivirus. Then the antivirus expired and I want to turn it back on but I can't. Getting a message: "Your PC isn't monitoring because the ...
0
votes
0answers
18 views

How to troubleshoot a “clogged” network

I am inheriting a mess of a network at my office. There's a bunch of switches and routers, not too mention hidden switches under desks that I can't see. Often times the network gets "clogged." ...
7
votes
3answers
3k views

Error: Couldn't update to Windows 8.1 preview. How to troubleshoot?

Trying to upgrade my PC, the process goes forward but in some point, it revers back to Windows 8.0. How can I troubleshoot the problem?
0
votes
0answers
42 views

Dropped computer, Windows 7 Startup Repair irregular

I'm having some issues with my computer (Lenovo T420) and startup repair. I've looked at a few other threads, but I'm unsure about some things with my situation. I knocked my computer off a table ...
1
vote
0answers
12 views

Analyzing Windows 7 intermittent freezes [duplicate]

For a few weeks now, my Windows 7 installation has been showing intermittent freezes. Typically, the currently focused application window will freeze for up to 7 seconds, but I can still switch to a ...
0
votes
0answers
36 views

Network devices down suddenly

This is a home network with many wired and wireless devices. Yesterday I plugged in a bad CAT5e cable (Orange/White and Orange - Tx- & Tx+) were crossed. It seems I lost all internet access for my ...
0
votes
0answers
17 views

Laptop screen randomly turns off and on again ONLY during start up

It's happened a few times by now, this what I do: Turn on laptop. Log in (everything fine until now). Desktop loads and screen randomly turns off and on again, usually 5 or 6 times and lasts less ...
0
votes
1answer
20 views

Can connect to router, but cannot access server (but only on my PC)

Using Windows Pro 64, I have been VPN-ing to our work server for years. Now, I can still connect to the router OK, but when I do I cannot access the server. When I map a network drive, I get ...
0
votes
2answers
4k views

How do I troubleshoot static noise in headphones connected to a computer that persists even after replacing the sound card?

I have an Asus P6T based system. I was using the on-board sound (plugging in Logitech X-230 2.1 analog speakers in the green "front speakers" 3.5mm analog output, then plugging in my headphones in ...
0
votes
0answers
47 views

Single website won't load on entire network

This is a new problem. It occured suddenly and without change to any settings or me doing anything to my network connection. Whenever I try to access quora.com, or any page on the site, whether it ...
5
votes
5answers
48k views

How can I completely disable tablet functions in Windows 7?

I'm the owner of an HP Pavillion tx2120us tablet PC, which has a known problem of making the cursor jump to the lower right corner of the screen. I've narrowed the problem down to the pen tablet ...
2
votes
5answers
5k views

How to diagnose local NIC (wired) losing packets?

My onboard Realtek RTL8168B/8111B Family Gigabit Ethernet is losing packets (about 8% when pinging any other device on the LAN). There are no events in the Windows event logs relating to TCPIP/ICMP ...
1
vote
3answers
32 views

Internet Connection Error - Connection Fails

My internet seems to be working but is not. My screen shows 4 bars (PC). However whenever I try to go to Amazon or any other major websites, apart from all things Google and Stack Exchange, it does ...
2
votes
2answers
25k views

HP DV1000 Laptop won't start. Flashing “power” light

I've been handed a laptop to "clean-up", it appears to be infested with spyware and various limewire type downloads. It had a habit of randomly shutting down after 30 seconds, BSODs if cables ...