I have a Aspire 5600U desktop. last week after windows 10 upgrade, I have lost wifi adapter.

modithas

Network adapter doesn't show wifi.

Sharanji

modithas 

In the search box on the taskbar, type Device Manager, and then select Device Manager from the list of results. In Device Manager, select Network adapters > Check if the network adapter is detected.

>If detected, select the name of your adapter, right-click it, and select Properties.Click on the Driver tab. Click the Roll back driver button. Click OK.

>If the button is grayed out, then it means that you don't have a previous driver to roll back to. Click the network adapter, and then select Update driver 

>To run the Network troubleshooter on you device, do the following:

Open Start.

Search for Network troubleshooter.

Select Identify and repair network problems from the result.

Once the troubleshooter completes the process, use your web browser to check if you can access the internet.

>Further, you may also look for optional updates in Windows Updates to see if there are any additional updates related to this device and install them as required.

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