You can try one or all the methods to fix the Wi Fi not working or wireless adapter not showing up in Device Manager on Windows 10, Windows 8.1, Windows 8, Windows 7, Windows XP and Windows Vista.Those solutions apply to Asus, Acer, Dell, HP, Sony, Lenovo, Samsung, Toshiba, IBM, Alienware, Compaq, Gateway, LG, Microsoft, MSI, etc.You can check the computer manual to find out such kind of buttons and enable wireless again.
The easiest ways of doing that is by deleting the Icon file.
If that file is missing, Windows will build it from scratch.
Finally, select End Process from the menu: The icons on your desktop will disappear, but don't panic, they will be back in a minute! The above procedure should force Windows to recreate its icon cache file from scratch.
If you don't see the Icon file right away, don't worry, it will appear after you log off and log back on to (or restart) Windows.
This free utility can instantly detect the driver issues and offer “Repair” or “Update” solutions.
Once you click on “Repair”, it will start to download and install the best-matched driver for your wireless adapter, and “Update” to update to a new driver version.
However, deleting this file is tricky: it turns out that Windows keeps a copy of this file in the RAM memory, and if you delete it, with will create a new copy of this file from it's RAM copy, without refreshing the icon images!
To prevent Windows Explorer from recreating the old icon cache file, you can do the following: 1.
For example, you might have upgraded an application and the new version came with a new and improved application icon, but you still see the old icon on the Desktop.
Sometimes something happens and Windows starts displaying wrong icons on the desktop.
UPDATE: If you use Windows 8 (or newer) the above procedure may not work.