Windows 10: Bluetooth suddenly not working Windows 10?

Earlier this year, I bought an older PC tower from a Thrift store. It says HP Pavilion about 2012 or so maybe. It started with Windows 8 and updated to Windows 10. I took the case off yesterday to clean it. I personally didn't unplug anything but my mother did. She unplugged one cable to clean something, plugged it back in, then unplugged another to continue the cleaning. We assumed everything got plugged back in right. I reconnected it to power and tried to connect my headphones Bluetooth to see if any of small games I installed would work we didn't have Internet for a few days until today

:)

 

Bluetooth in windows 10

My computer specs are as listed in the profile. I think all of you guys are correct. I don't have built-in Bluetooth in mobo.

I contacted skull candy headphones and thy have told me if I do not have built-in Bluetooth, I would need a dongle which supports at least a2dp. I do not know what the heck that means. I have a feeling I would need more than a cheap dongle.

Anyone suggest some a2dp adapters. I searched but don't know what a2dp is so couldn't make a decision

 

Bluetooth in windows 10

So I bought a new Bluetooth headphones the skull candy uproar since my old one isn't working. It came with only the headset and usb charging cable. The problem is I can't seem to pair it to my pc. I have windows 10 by the way. There is no Bluetooth on off button in windows settings. I went to device manager but there us no icon for Bluetooth. I did everything I knew but none of it worked.I can post pictures if anyone needs.An alternative might be a Bluetooth dongle but I m not sure I'd it would work plus I paid $50 so don't wanna spend more

I looked up on Internet and many people seem to have issues with windows 10 and Bluetooth. I thought of asking here knowing my UK friends are smart.

Anyone have any idea of how to get Bluetooth to work on my pc.

PS don't curse windows 10. I already know it's a mess and not a very good os.

 

Bluetooth in windows 10

USB-BT211 Mini Bluetooth Dongle - Support

• Support A2DP for Wireless Stereo Music Playback

Edit: This is a dongle with old BT version I see now, but I'm sure you can find a Asus BT4.0 version.

Edit2:

@aasim1111 I have this one, it doesn't show that it supports A2DP in the specs but I think it'll work, otherwise send a mail to Asus and ask.
USB-BT400｜Adapters｜ASUS Global