131
votes
2answers
129k views

How to stop Microsoft from gathering telemetry data from Windows 7, 8, and 8.1

Some of the update patches pushed to Windows 7, 8, and 8.1 during this year seem to be solely for the purpose of gather data from a user's system. Is there a way to disable the telemetry through ...
129
votes
25answers
16k views

How to find and remove “spicy” media files from my PC [closed]

I have an embarrassing problem: during my younger and wilder days, I used to download a certain type of movie clips and pictures. The combination of youthful foolishness and a couple of beers ...
129
votes
13answers
84k views

How to reliably keep an SSH tunnel open?

I use an SSH tunnel from work to go around various idotic firewalls (it's ok with my boss :)). The problem is, after a while the ssh connection usually hangs, and the tunnel is broken. If I could at ...
129
votes
10answers
86k views

How do I exit a Modern UI app?

So I downloaded and installed Windows 8. I'm very impressed, except for one thing. I don't have touch, and I have this running in a virtual machine. How do I exit one of these full screen Modern UI ...
129
votes
9answers
82k views

How do I turn off Modern UI and get the old Start Menu back in Windows 8?

I just bought a new Windows 8 laptop, but I want to get rid of the new "Modern UI" Start Screen, and get the old Start Menu back. How do I do this?
128
votes
8answers
129k views

How do I add text to the beginning of a file in Bash?

Hi I want to prepend text to a file. For example I want to add tasks to the beginning of a todo.txt file. I am aware of echo 'task goes here' >> todo.txt but that adds the line to the end of ...
128
votes
5answers
12k views

How does Linux know that the new password is similar to the previous one?

A few times I tried to change a user password on various Linux machines and when the new password was similar to the old one, the OS complained that they were too similar. I always wondered, how does ...
128
votes
5answers
149k views

Using ffmpeg to cut up video

I am using ffmpeg to cut out a section of a large file like this: ffmpeg -i input.wmv -ss 60 -t 60 -acodec copy -vcodec copy output.wmv The -ss part works fine but the -t is ignored. It correctly ...
128
votes
5answers
122k views

Connect to the host machine from a VirtualBox guest OS?

I'd essentially like to access my host computer from the guest in VirtualBox. Is there an IP address given for my host which I can use from the guest? Are there extra steps required to set this up? I'...
128
votes
3answers
188k views

ps aux output meaning

When typing ps aux, what does each column of the output mean? For example $ ps aux timothy 29217 0.0 0.0 11916 4560 pts/21 S+ 08:15 0:00 pine root 29505 0.0 0.0 38196 2728 ? ...
127
votes
10answers
288k views

Disable Microsoft Office Upload Center

With Microsoft Office 2013 and 2016, Microsoft Office Upload Center runs automatically and shows up in the system tray. I don't use it and want stop it from running. How can I remove that program ...
127
votes
6answers
12k views

Tiny copper waffle squares inside computer

I've been hearing a sound from inside my MSI GE60 laptop for a while now, so I opened it up to find that these two tiny copper waffle squares came loose. They were originally stuck to the board with ...
127
votes
8answers
73k views

Turn on the link hover statusbar in Google Chrome

I want to turn on the feature where whenever I hover over a hyperlink and in the bottom lefthand corner it shows a light blue hover tooltip about where that link goes. It looks like that since some ...
126
votes
3answers
10k views

How and why is this string of text a fork bomb?

Found on a random chan board: echo "I<RA('1E<W3t`rYWdl&r()(Y29j&r{,3Rl7Ig}&r{,T31wo});r`26<F]F;==" | uudecode Somehow running this this results in an infinitely spawning ...
125
votes
3answers
53k views

Rename screen session

Is it possible to change the name of a GNU screen session? Say I called started it with "screen -S foo" and I want to rename it to bar.
124
votes
5answers
164k views

Permissions on private key in .ssh folder?

I changed my permissions in my .ssh folder and now when I use a piece of software that uses my private key, I have to type my password each time. What should my permissions be on my id_rsa file to ...
124
votes
1answer
225k views

What is port forwarding and what is it used for?

There are a lot of questions on 'port forwarding' but there doesn't seem to be one that clearly states what it is and what it's used for. So: What is Port Forwarding? What is it used for, and why ...
124
votes
9answers
39k views

Is there a convenient way to edit PATH in Windows 7?

I do not understand why Windows 7 is still adopting this stuffy dialog box? I feel uncomfortable when editing and looking-up a path in this narrow text box. Is there a convenient way to edit PATH ...
124
votes
1answer
86k views

How can I clear cookies for a single site? [duplicate]

Sometimes a webapp breaks for whatever reason, and I need to clear my cookies in order to use it again. I wind up clearing all of my cookies, which is a pain, because I then have to log back in to all ...
124
votes
4answers
88k views

Where should the .vimrc file be located on Windows 7?

I recently installed vim on Windows 7 as a stand-alone binary. Where should I put my .vimrc file?
124
votes
5answers
77k views

Preventing applications from stealing focus

Are there any solutions to prevent applications stealing focus from the active window? This is especially annoying when I'm starting an application, switch to do something else and the new ...
123
votes
5answers
315k views

How to mount a HFS partition in Ubuntu as Read/Write?

I plugged in my external harddrive (which was formatted on my Mac into HFS+ journaled) to my Ubuntu desktop 9.04 64bit. I am not able to get the drive to mount with write capability, how do I do that?...
123
votes
8answers
55k views

Running upstart jobs as unprivileged users

What's the canonical way to have an upstart job change its userid and run the script as an unprivileged user? Obviously one can use su or sudo, but this seems hacky (and can generate needless log ...
123
votes
5answers
290k views

How can I make chown work recursively?

I've got a directory called pdfs that contains a bunch of sub- and sub-sub-directories. I want to change ownership on all PDF files in all of the subfolders. I just tried this: chown -R someuser:...
122
votes
9answers
9k views

What is the danger of inserting and browsing an untrusted USB drive?

Suppose someone wants me to copy some files to their USB stick. I'm running fully-patched Windows 7 x64 with AutoRun disabled (via Group Policy). I insert the USB drive, open it in Windows Explorer ...
122
votes
5answers
272k views

How can I list all IPs in the connected network, through Terminal preferably?

Using Ubuntu 10.10, I was wondering if there was a command line command that can list all the IPs of devices connected to the network? I would use this for example, to list all the computers ...
122
votes
4answers
79k views

Chrome: remove URL from autocomplete which doesn't show up in history? [duplicate]

I accidentally visited gist.gihub.com (note the missing t), and now that URL auto completes each time I start typing gist.…. How can I remove this URL? I've tried removing it from my history, but ...
122
votes
5answers
12k views

How to identify whether my Linux computer was hacked?

My home PC is usually on, but the monitor is off. This evening I came home from work and found what looks like a hack attempt: in my browser, my Gmail was open (that was me), but it was in compose ...
121
votes
13answers
257k views

What can I do if I forgot my Windows password?

I got a brand new Windows 7 machine, installed the operating system, created one account and forgot its password. What can I do? There is no external CD, the operating system is loaded from somewhere ...
121
votes
4answers
145k views

How to match whitespace in sed?

How can I match whitespace in sed? In my data I want to match all of 3+ subsequent whitespace characters (tab space) and replace them by 2 spaces. How can this be done?
121
votes
2answers
201k views

What do green folders mean in Windows 7 Explorer?

I downloaded a ZIP file and dragged the files out of the ZIP into a directory. The subdirectories I copied displayed in Windows Explorer in green instead of the default black. What does the green ...
121
votes
5answers
49k views

What is the difference between shell, console, and terminal?

I'm confused with the terminology. What is the difference between shell, console, and terminal?
120
votes
3answers
71k views

How can I set autoreload modified files in notepad++

How can I set autoreload modified files in notepad++? The confirmation step is annoying, and in some situations completely unnecesary.
120
votes
3answers
16k views

Why are websites suddenly asking me about cookies?

I have for a long time known that websites give me cookies so that small pieces of information can be remembered about my habits, passwords etc. I accept this, but all of a sudden they are asking for ...
119
votes
11answers
326k views

Does an equivalent of Time Machine exist for Windows? [closed]

A simple Google search for "Time Machine for Windows" results in a flurry of different little apps. But instead of relying on forum anecdotes and advertisements, I call on the much wiser Super User ...
118
votes
8answers
137k views

Where does $PATH get set in OS X 10.6 Snow Leopard?

I type echo $PATH on the command line and get /opt/local/bin:/opt/local/sbin:/Users/andrew/bin:/usr/local/bin:/usr/local/mysql/bin:/usr/local/pear/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/...
118
votes
7answers
5k views

Why can't I email myself at: MyEmail@74.125.235.55?

I opened cmd and typed ping gmail.com. It shows me: C:\Windows\system32>ping gmail.com Pinging gmail.com [74.125.235.55] with 32 bytes of data: Reply from 74.125.235.55: bytes=32 time=6ms TTL=56 ...
118
votes
12answers
247k views

How to force Internet Explorer (IE) to REALLY reload the page?

When using Internet Explorer 8 to test my web application I often find it doesn't reload the page, so I don't see my changes. This has resulted in a lot of wasted time and frustration wondering why my ...
118
votes
4answers
31k views

How does Windows know whether it has internet access or if a Wi-Fi connection requires in-browser authentication?

In Windows 7, the notification area networking icon will show an error indicator if there is no internet access , and the error icon goes away once there is a successful connection to the internet . ...
118
votes
6answers
483k views

Can I completely disable Cortana on Windows 10?

Windows 10 has Cortana, which I don't like. I disabled it as soon as I could. However, looking in Task Manager, the process for Cortana is still running, and can't be effectively terminated: ending ...
118
votes
2answers
28k views

How to avoid exposing my MAC address when using IPv6?

On my Macs, each IPv6 address includes the MAC address of a specific computer (not of my router). Sites such as ipv6-test.com not only show it, but even tell me it belongs to an Apple computer. This ...
118
votes
2answers
79k views

Is there anyway to stop Windows 8 from restarting for an update?

My Windows 8 machine is going to restart shortly... I have tried a few techniques such as shutdown /a which is not having much luck. Short of pausing the Windows Update service, is there anyway to ...
117
votes
5answers
18k views

Why does anti-virus software not delete the viruses, malware, etc., but instead quarantine them?

Why does anti-virus software not completely delete the viruses, malware, etc., but instead quarantine them? Is it not better to completely get rid of them? Why? And how can I manually remove them?
117
votes
7answers
17k views

How to use the Internet while Heartbleed is being fixed?

There are many websites who are not currently vulnerable, but I have no idea if they were vulnerable a few days ago. For example: twitter.com: Not vulnerable right now, but the certificate is from ...
116
votes
12answers
22k views

If RAM is cheap, why don't we load everything to RAM and run it from there?

RAM is cheap, and much faster than SSDs. It's just volatile. So why don't computers have a LOT of RAM, and on power up, load everything to the RAM from the hard drive/SSD and just run everything from ...
116
votes
5answers
109k views

Recursively count all the files in a directory [duplicate]

Possible Duplicate: How can I count the number of folders in a drive using Linux? I have a really deep directory tree on my Linux box. I would like to count all of the files in that path, ...
116
votes
9answers
12k views

Why is Zip able to compress single file smaller than multiple files with the same content?

Suppose that I have 10,000 XML files. Now suppose that I want to send them to a friend. Before sending them, I would like to compress them. Method 1: Don't compress them Results: Resulting Size: ...
116
votes
10answers
111k views

How to delete all lines in Notepad++ except lines containing a word I need?

I have a text file. I want to keep lines started with <Path>, and delete all the other lines. How can I do it?
116
votes
10answers
82k views

How do I set up SSH so I don't have to type my password?

How do I set up SSH so I don't have to type my password when connecting to a host?
115
votes
7answers
74k views

How do I convert a video to GIF using ffmpeg, with reasonable quality?

I'm converting .flv movie to .gif file with ffmpeg. ffmpeg -i input.flv -ss 00:00:00.000 -pix_fmt rgb24 -r 10 -s 320x240 -t 00:00:10.000 output.gif It works great, but output gif file has a very ...

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