If your computer laptop or desktop wireless is not working then this dongle will solve the problem.
It comes with CD disk software and dongle, Download the supplied software CD ROM to the laptop or computer desktop
plug in the USB dongle. click on the software and enter the wifi password,

Your laptop will now connect to Wi-Fi.

this is very simple

Super-small size compact design that fits into your computer’s USB port
Complies with wireless 802.11n standards
Data rate up to 150Mbps
Supports 64/128 bit , WPA encryption
Transfer : Direct Sequence Spread Spectrum (DSSS)
Frequency Band: 2.4~2.4835GHz
Effective Working Distance: 100 meters farthest indoor and 150 meters farthest outdoor (varies due to the environment)
Support System with Vista / XP / 2000 / 7 / window 10  / Linux
Dimensions: 0.71 inch x 0.59 inch x 0.24 inch (18 mm x 15 mm x 6 mm)
Net Weight: 0.07oz (2g)
Colour: Black
Material: ABS

Package Including:
1 x Wifi Network Adapter 

1 x  Cd Disc