Find Windows Product Key

Press Windows key + X.

Click Command Prompt (Admin)At the command prompt, 

type: wmic path SoftwareLicensingService get OA3xOriginalProductKey

This will reveal the product key. Volume License Product Key Activation.

Windows ISO Official Direct Download Links

Download Windows ISO (7, 8.1, and 10) via hack script:

• Go to https://www.microsoft.com/en-us/software-download/techbench.
• In Chrome, hit Ctrl + Shift + J to open the Console.
• In Firefox, hit Ctrl + Shift + K to open the Web Console (may need to type allow pasting before proceeding).
• In IE or Edge, hit F2 to open Developer Tools and go to Console.
• Copy and paste the following JavaScript into the JS console, and execute it: 

PasteBin

• You can now select all Windows 7, Windows 8.1 and Windows 10 ISO images that are officially available for download from Microsoft. 

Source:
https://techjourney.net/windows-7-8-1-10-iso-official-direct-download-links-from-microsoft-tech-bench/

Legal Notice on Windows Login Screen

Open Regedit, then navigate to:

HKEY_LOCAL_MACHINE > SOFTWARE > Microsoft > Windows > Current Version >Policies > System

Add or Remove legalnoticecaption and legalnoticetext Value data field

Determine your Windows system is 32-bit or 64-bit from the commandline

open command prompt, type:

wmic os get osarchitecture

Inverting direction of mouse scroll wheel

Run this in PowerShell as administrator (from Start » All Programs » Accessories » Windows PowerShell):

Get-ItemProperty HKLM:\SYSTEM\CurrentControlSet\Enum\HID\*\*\Device` Parameters FlipFlopWheel -EA 0 | ForEach-Object { Set-ItemProperty $_.PSPath FlipFlopWheel 1 }

SSID management

show wlan list:

netsh wlan show profile

remove wlan profile:

netsh wlan delete profile

How to Create a Wireless Hosted Network (WiFi Hotspot)

You can actually create a wifi hotspot from the Command prompt.
Just follow these simple steps, and you should have it ready to run.
1. Open Command prompt as administrator.
2. Type in:

netsh wlan set hostednetwork mode=allow SSID=test key=password 

(You can name your SSID and key to whatever you want it to be)
3. Type:

netsh wlan start hostednetwork 

(To stop it, type: netsh wlan stop hostednetwork)


source:  
http://www.makeuseof.com/answers/is-there-a-good-alterantive-to-connectify-pro-to-turn-windows-7-into-a-wifi-hotspot/
http://geeksandtweaks.com/wp/how-to-create-wireless-hosted-network/