Wifi adapter disappear

Hi Wifi adapter disappear in Network Connection in Win8. this might be virus issue. Checking Device manager, I also cannot see it. System restore cannot get it back to normal. Anyone can give some suggestion? Thank you
eemoonAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

JohnBusiness Consultant (Owner)Commented:
Run a full virus scan with your own AV followed by a scan with Malwarebytes.

When done, shut down (power off), start up and check Device Manager. Is there a Wi-Fi adapter?  

You can also try downloading the correct driver for your machine and installing that.
0
eemoonAuthor Commented:
Thank you so much for your fast reply.
I doubt this is virus issue. is it possible the wifi component is broken? so that I cannot see it at all in all pc. I plug in a usb-wifi and then it work well. the issue is where the original is? the hardware is broken? if virus issue, hardware should be there.
0
nobusCommented:
post a screenshot of device manager, showing the wifi cards
0
Protecting & Securing Your Critical Data

Considering 93 percent of companies file for bankruptcy within 12 months of a disaster that blocked access to their data for 10 days or more, planning for the worst is just smart business. Learn how Acronis Backup integrates security at every stage

Shaun VermaakTechnical Specialist IVCommented:
OP cannot see it in device manager
0
nobusCommented:
right shaun

then  - i suggest he posts the system model, and we point him to the drivers, so he can update it
he can also test if it works ok when booted from a live cd, - Linux one maybe the easiest
0
JohnBusiness Consultant (Owner)Commented:
is it possible the wifi component is broken?

Yes.  I asked earlier that you try to install the driver. If the driver will not install, and you are sure you do not have an issue with viruses, and now you said the USB Wi-Fi works, then it is likely the card has gone defective.
0
Thomas Zucker-ScharffSolution GuideCommented:
I had this happen on a win10 box.  I am still not sure why it happened.  I tried everything (rebooting, etc) and then took a usb wifi adapter and plugged it into the usb port to get wifi again.  This worked, and several reboots later, I took the adapter out and the WiFi was working again.  So several reboots might work.  The USB adapter costs $39, or you could borrow one.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
nobusCommented:
testing it from a live cd = free of cost
1
eemoonAuthor Commented:
after i tried many times to restart pc, i found the wifi adapter disappear and appear so irregularly. but this tells me the wifi and driver sometimes can work and existing there. then after i plug anther wifi usb adapter, it always works well. but this adapter size is a little big. after i search in ebay, i can buy mini one, which costs only $4. i ordered it already and waiting for the try.
Then i check you guys comment. I found Thomas has the same experience as me. so i suggestion you order mini one in case you can use it immediately if it happen.  Thank you guys comments
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Windows 8

From novice to tech pro — start learning today.