Record sound playing on laptop or computer

Right-click Speaker icon on Windows Taskbar and select Recording devices

Click Recording tab

 Right click in empty space and select Show Disabled Devices

You will see Stereo Mix
If it's disabled then enable it : Right click Stereo Mix device - Enable

Right click Stereo Mix device and select Set as Default Device

Click OK

Now play Audio recording software and record the sound playing on the system.

Check system Up time from command prompt

Open command prompt

run this command
systeminfo | find "System Boot Time"

Check how long system has been running without restart (Up time)

Open Task Manager
Click Performance tab
Click CPU

You will see Up time

Rotate Screen in Windows 8

Right-click on desktop
Select Screen resolution

If you have muliple monitors, select the monitor whose setting you want to change.

Select the appropriate option from Orientation List Box.

 Click OK


Keyboard Shortcuts
CTRL + ALT + Up Arrow = Landscape [default]
CTRL + ALT + Down Arrow = Landscape (flipped)
CTRL + ALT + Left Arrow = Portrait
CTRL + ALT + Right Arrow = Portrait (flipped)

Duplicate, Extend or Switch Display to Second Screen in Windows 8

Press Windows Key + P to open Display Switch

You can also create desktop shortcut with following steps.
Right click on a desktop
Click New
Click Shortcut

Use any of the following commands depending upon your requirement

Opens Display Switch
%windir%\System32\DisplaySwitch.exe

Second Screen Only
%windir%\System32\DisplaySwitch.exe /external

PC Screen Only
%windir%\System32\DisplaySwitch.exe /internal

Duplicate
%windir%\System32\DisplaySwitch.exe /clone

Extend
%windir%\System32\DisplaySwitch.exe /extend


Click Next
Type name for shortcut and click Finish.

Force VMware virtual machine to enter BIOS

Add bios.forceSetupOnce = "TRUE" to Virtual Machine's vmx file.
 or
Click VM > Power > Power On to BIOS.

Minimize open windows shortcut

Press Windows logo key + M

Press Windows logo key + Shift + M to restore

Enable UEFI in Virtual Box

Open Virtual Machine settings
Select System, in Motherboard tab select Enable EFI (special OSes only)

Print list of files in a directory in Windows

Open command prompt

run the command to create in a list of files in a file.

dir > filename.txt

It will lists all the files along with the information.

To list only file names run the following command

dir /b > filename.txt

To list  file names in the current & sub directories run the following command

dir /b /s > filename.txt

Run command dialog box shortcut

Press Windows logo key + R

Create Wifi Hotspot in Windows 8

Please follow the below steps to create Wifi Hotspot in Windows 8 with command prompt.

You need to have supported WiFi card.
To check whether WiFi card supports hotspot feature or not follow this step

Run this command from command prompt with administrator rights.
netsh wlan show drivers

Look for Hosted network supported
If it says Yes then proceed with the following steps.
 

Run these commands from command prompt with administrator rights.

netsh wlan set hostednetwork mode=allow ssid=MyNetwork key=password
Change ssid & key value

netsh wlan start hostednetwork

Open Network Connections

Right Click Internet Connection and select Properties

Click Sharing tab

Select check box Allow other network users to connect through this computer’s internet connection

Select Local Area Connection* 13 from Home networking connection drop down menu.

Click OK

You will see Internet access under connectivity column.

If you see No network access then disable & enable Microsoft Hosted Network Virtual Adapter.
Now to make Microsoft Hosted Network Virtual Adapter visible in Network Connections
Run this command from command prompt with administrator rights.
netsh wlan start hostednetwork

If you see No internet access then make sure shared connection is connected to internet.
Now disable & enable Microsoft Hosted Network Virtual Adapter.
Now to make Microsoft Hosted Network Virtual Adapter visible in Network Connections
Run this command from command prompt with administrator rights.
netsh wlan start hostednetwork

Alternatively in case of No network access and No internet access you can run following commands from command prompt with administrator rights as it works for me instead of disabling/enabling the adapter.
netsh wlan set hostednetwork mode=allow ssid=AnyNetwork key=password
netsh wlan set hostednetwork mode=allow ssid=MyNetwork key=password
netsh wlan start hostednetwork


Error:
The hosted network could not be started.
The group or resource is not in correct state to perform the requested operation.
Solution: Enable Microsoft Hosted Network Virtual Adapter

Disable Microsoft Hosted Network Virtual Adapter in Windows 8

Open Network Connections

Right click on Microsoft Hosted Network Virtual Adaptor and click Disable

Enable Microsoft Hosted Network Virtual Adapter in Windows 8

Open Device Manager

Click View - Show Hidden Devices

Right click on Microsoft Hosted Network Virtual Adaptor and click Enable

Now run the below command with administrator rights to make it appear in Network Connections

netsh wlan start hostednetwork