Greatest Hits

563 votes
13 answers

Windows 7 SP1 Windows Update stuck checking for updates

I installed Windows 7 fresh and installed SP1. Now, when I try to check manually for Windows Updates it just hangs on the Checking for updates screen. I tried running the tools in How do I reset ...
250 votes
10 answers

How to fix the wrong number of unread emails flag in Outlook?

I have an annoying problem in Outlook 2013. My inbox is flagged with "1" unread message, but this is not the case. Even when I empty my inbox folder, this bold "1" stays next to my folder, new as it ...
  • 4,739
2406 votes
7 answers

How do I make a POST request using curl?

How do I make a POST request using cURL's command-line tool?
user avatar
433 votes
10 answers

How to rename the User folder in Windows 10?

After installing Windows 10 on my Surface Pro 3 it took my user name 'Jeremy' and created a user folder named C:\Users\jerem. I want to rename the folder C:\Users\Jeremy. The procedure for Windows 8 ...
  • 6,970
134 votes
14 answers

Word heading number blacked out

When opening the document I am working on in Word 2010 this morning, the number in heading level 1 is a black rectangle: however, it still look ok in the bookmark pane: Weird, ey?
  • 1,990
94 votes
15 answers

Option to Turn Bluetooth on or off is Missing

I want to disable Bluetooth on my laptop running Windows 10 Pro x64, but I have a problem: the option to do so is missing even though I know that it was previously available. Here is the Bluetooth ...
310 votes
1 answer

Mouse pointer moving on arrow keys pressed in Windows?

I'm encountering a strange problem on my W10 computer, for a few days my arrow keys have been "driving" my mouse pointer. Pressing the left arrow key will move the pointer a few pixels left, ...
  • 11.5k
21 votes
3 answers

vc_redist.x86.exe Setup Failed: 0x80240017 Unspecified error

An installer told me I need to first install Visual C++ Redistributable Packages for Visual Studio 2013 and gave the link Unfortunately ...
17 votes
5 answers

How can I "turn on wireless capability" in Windows 7?

On my laptop I have a strange bug or something that fairly frequently causes wireless networking to become spontaneously disabled. Network connections drop out & all available APs disappear. ...
1156 votes
13 answers

Find out which process is locking a file or folder in Windows

How can I find out which process is locking a file or folder in Windows? For instance, when trying to delete a folder, Windows reports this: The action can't be completed because the folder is ...
  • 20.6k
313 votes
9 answers

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 ...
  • 3,451
1306 votes
19 answers

Getting curl to output HTTP status code?

I'm using curl at the command line on Linux to issue HTTP requests. The response bodies are printed to standard out, which is fine, but I can't see from the man page how to get curl to print the ...
  • 13.8k
251 votes
10 answers

How can I check the temperature of my CPU in Windows?

Does Windows provide a means to check my CPU temperature natively? If not, are there any software tools which can reveal this information?
  • 3,095
16 votes
19 answers

How to get rid of large gaps in text in MS Word

When formatting a document such as a resume, MS Word often inserts a large gap in the text--sometimes as much as half a page of blank space. When I try to delete the gap, moving the cursor from the ...
user avatar
721 votes
8 answers

How can I display the contents of an environment variable from the command prompt in Windows 7?

In Windows 7, when I start the Command prompt, is there any command to display the contents of an environment variable (such as the JAVA_HOME or PATH variables)? I have tried with echo $PATH, echo ...
  • 26k
40 votes
5 answers

W A S D keys are swapped with arrow keys?

I have a desktop that I don't use that much (mostly for burning CD's and stuff). I logged on and wanted to search for a program only to realize that the W S A and D keys are swapped with the arrow ...
803 votes
31 answers

Is there a built-in checksum utility on Windows 7?

Is there a built-in checksum/hash utility on Windows 7?
  • 8,357
167 votes
14 answers

Convert a column into a comma separated list

I have the task of creating a simple Excel sheet that takes an unspecified number of rows in Column A like this: 1234 123461 123151 11321 And make them into a comma-separated list in another cell ...
  • 2,399
718 votes
14 answers

macOS keeps asking my ssh passphrase since I updated to Sierra

It used to remember the passphrase, but now it's asking it to me each time. I've read that I need to regenerate the public key with this command, which I did: ssh-keygen -y -f id_rsa > ...
  • 7,301
424 votes
24 answers

How to delete directories with path/names too long for normal delete

Windows seems to have a length limit on file names when trying to delete, though it won't prevent those files from being created. Our build process creates a number of temporary files (many build off ...
  • 9,094
1851 votes
14 answers

How do I scroll in tmux?

How do I scroll with either the keyboard or mouse? The tmux man page indicates one must enter copy-mode to scroll. Is there a way to quickly scroll without manually entering copy-mode?
  • 18.7k
305 votes
21 answers

How to move windows that open up offscreen?

I have a dual monitor setup, and I recently played around with the positioning settings, and some of my single window applications do the favour of preserving where they were last closed, and opening ...
151 votes
7 answers

mysql how to fix Access denied for user 'root'@'localhost'

Before I screw up something, when I login using $ mysql -u root -p, and show databases: +--------------------+ | Database | +--------------------+ | information_schema | | mysql ...
  • 1,613
454 votes
15 answers

How to enable execution of PowerShell scripts?

When I try to execute my PowerShell script I get this error: File C:\Common\Scripts\hello.ps1 cannot be loaded because the execution of scripts is disabled on this system. Please see "get-help ...
57 votes
6 answers

Can't install Kali Linux from USB, fails to find CD-ROM drive

I successfully made a live USB of the Kali Linux. When I boot from the USB it gives an option to install. I clicked on that option. At one point it was detecting and mounting CD-ROM drives. As I have ...
26 votes
6 answers

How can I copy a DVD to another DVD using a single DVD drive?

I need to copy a DVD to another DVD, but I have only a single DVD drive. How can I accomplish this? I tried copying files to the desktop and then to another DVD. It didn't work out.
  • 388
433 votes
11 answers

What is the home directory on Windows Subsystem for Linux?

When I start bash on Windows Subsystem for Linux, it drops me in the directory /mnt/c/Users/<username> When I ls this directory, I see the directories Desktop, Documents, etc. that I can see ...
  • 4,473
72 votes
24 answers

How to make cells perfect squares in Excel?

In Microsoft Excel, I want to make the height of first three rows and first four columns (12 cells in the top left corner) such that these cells are squares. How can this be done? Surprisingly, ...
  • 16.7k
1057 votes
25 answers

How to tell git which private key to use?

ssh has the -i option to tell which private key file to use when authenticating: -i identity_fileSelects a file from which the identity (private key) for RSA or DSA authentication is read.  The ...
  • 12k
601 votes
10 answers

How to stop an automatic redirect from “http://” to “https://” in Chrome

I had something set up wacky in our DNS setup which is now resolved. The remaining problem is that chrome has cached the incorrect setup. Specifically, when using Chrome is now ...
  • 6,119
349 votes
7 answers

Why does virtualbox only have 32-bit option, no 64-bit option on Windows 7?

I have downloaded and installed the newest virtualbox 4.3.20 for my Windows 7 (64-bit OS), but when I want to install 64-bit Linux, the New->Create Virtual Machine only displays 32-bit option, no 64-...
  • 4,073
347 votes
14 answers

How can I send a Ctrl+Alt+Delete through Remote Desktop in Windows 8?

I need to send a CtrlAltDelete to a remote machine through Remote Desktop. The CtrlAltDelete is being intercepted by Windows 8, regardless of whether the remote desktop has focus or is in full screen. ...
  • 12.6k
1 vote
4 answers

Remove Enterprise Enrollment from Chrome OS

How to remove Enterprise Enrollment from a Samsung chromebook xe303C12 ? Any help would be appreciated... I have tried wiping the Chrome OS. I have also tried installing image recovery. Nothing I've ...
401 votes
18 answers

Windows SSH: Permissions for 'private-key' are too open

I've OpenSSH 7.6 installed in Windows 7 for testing purposes. SSH client & server work just fine till I tried to access one of my AWS EC2 box from this windows. It seems like I need to change the ...
  • 4,693
290 votes
10 answers

Using cd command in Windows command line, can't navigate to D:\

This may be a silly question, and I think I have looked elsewhere to find the answer... Might be a path issue, but when I open the command line and type from the C:\>: cd D:\ I cannot get to the ...
  • 6,565
86 votes
9 answers

Why is my USB mouse disconnecting and reconnecting randomly and often?

My mouse will reconnect/disconnect (will even hear the sounds from Windows), and the light on the bottom of the mouse will turn off/turn on as it starts working again. It really sucks to be playing a ...
user avatar
28 votes
8 answers

What's the difference between intranet, extranet and internet?

What's the difference between intranet, extranet and internet?
user avatar
1680 votes
10 answers

How can I sort the output of 'ls' by last modified date?

How can I sort the output of ls by last modified date?
user avatar
1045 votes
17 answers

How to clear/flush the DNS cache in Google Chrome?

As you probably know Google Chrome has its own internal DNS cache. Is there a way to clear it without having to wait for the time out or close the browser?
  • 10.6k
60 votes
5 answers

Create a bootable USB drive from a DMG file on Windows

A Mac machine needs to be reformatted with Lion. I backed up the Lion dmg file when I purchased it via the Mac App Store. I now need to create a bootable USB drive from the DMG file but I need to be ...
96 votes
18 answers

If USB is not listed in BIOS as a boot option, does that mean the machine can't boot from USB?

I just purchased an Asus Zenbook Prime UX31A-DH51 with Windows 8. I want to wipe the drive and do a clean install but USB is not listed as a boot option in the BIOS. Does this mean it is not possible? ...
  • 1,139
95 votes
4 answers

How do I delete a user profile on a Windows 7 machine that is part of a domain?

How can I delete the local user profile on a Windows 7 machine that is connected to a Windows Server 2008 domain? DelProf doesn't seem to exist on Windows 7.
  • 1,073
175 votes
14 answers

How can I find out what motherboard is in my computer?

I want to find out the exact model of my computer's motherboard so that I can see what sort of memory chip, graphics cards and other components it supports. I'm using Windows 7 Ultimate 64-bit.
  • 2,022
2146 votes
3 answers

Why does Windows think that my wireless keyboard is a toaster?

I've inherited an old PC from my girlfriend's dad and when setting up the printer I got a bit of a surprise: Two questions spring to mind here: Why does Windows think my wireless keyboard is a ...
  • 11.7k
465 votes
14 answers

Test if a port on a remote system is reachable (without telnet)

In the old days, we used telnet to see if a port on a remote host was open: telnet hostname port would attempt to connect to any port on any host and give you access to the raw TCP stream. These days,...
  • 6,830
460 votes
21 answers

How to download files from command line in Windows like wget or curl

How can I download something from the web directly without Internet Explorer or Firefox opening Acrobat Reader/Quicktime/MS Word/whatever? I'm using Windows, so a Windows version of Wget would ...
88 votes
8 answers

How to disable or uninstall Microsoft Edge in Windows 10

Is there any possibility to completely disable the new Edge browser? The old IE could be disabled in Settings → Default Programs, but in Windows 10, the checkbox is missing for Edge. Is there any way ...
13 votes
7 answers

Volume Low in Chrome Browser

Volume for audio and video sounds too quiet in Chrome, e.g. on YouTube. I have tried restarting it (via the actual exit option) and then I tried restarting the computer. Running Windows 8.1. Volume ...
  • 133
15 votes
6 answers

How to reinstate a missing wireless adaptor in Windows 10

I have no Wireless adapter showing under Control Panel → Network and Internet → Network Connections. I just see Bluetooth and Ethernet. How do I reinstate the Wireless adapter in Windows so I can ...
359 votes
21 answers

Move an off-screen window back on-screen on Mac OS X

It seems that Mac OS X 10.6.1 Snow Leopard has a tendency to leave some windows off-screen at times, especially when I disconnect an external monitor from my MacBook. How can I move the window back on-...