We use cookies to provide you with a better experience. If you continue to use this site, we'll assume you're happy with this. Alternatively, click here to find out how to manage these cookies

hide cookie message
Contact Forum Editor

Send an email to our Forum Editor:


PLEASE NOTE: Your name is used only to let the Forum Editor know who sent the message. Both your name and email address will not be used for any other purpose.

Tech Helproom


It's free to register, to post a question or to start / join a discussion


 

Control panel Troubleshooting


highside

Likes # 0

Anyone explain two more useless Windows messages please?

In control panel the laptop icon has a Yellow Exclamation mark attached. Right clicked on PC & strated troubleshooter which says 1) "Unknown device" "doesnt have a driver" how do I remove this device whatever it is? 2) "Hardware changes might not have been detected" (has exclamation mark) What on earth does this mean, I havent made any changes since six months ago when RAM was added and that was detected by windows?

HP Laptop Pavillion 8 GB RAM Windows 7 64 bit (as fitted at time of purchase)Runs OK no other known problems.

I have a 7 port external USB hub which seems to work OK

Thanks for looking.

Like this post
buteman

Likes # 0

Maybe try in device Manager and see if any yellow exclamation marks on there.

Like this post
buteman

Likes # 0

Open up universal serial bus Controllers while in device manager and see if any yellow exclamation marks in there.

Check for unsigned drivers Microsoft reacts badly to those.

Like this post
buteman

Likes # 0

Just a thought, [Unknown device" "doesn't have a driver ] I had that problem this morning in device Manager it was showing as a unknown device and it had no drivers.

The only way I could remove it was to delete it and then run my registry cleaner to remove it completely.Without running the registry cleaner it would just appear again at the next boot up.

Now that was my problem yours may be different,Mine never had a driver attached to it and no file for it.So it was safe to delete.

I believe it was a flash drive that I was trying last week and it did not work and I forgot about it.

When I removed it the first time and rebooted the computer froze on start up and I had to start in safe mode and press last good configuration to get started again.

Once I removed it and the ran the reg cleaner it starts no bother now.

Like this post
highside

Likes # 0

Thanks for replying the exclamation does show, at the stage I said and also in device manager but only in a sub heading of "Unknown devices"it also shows at the second part of my query. Windows offered to seach for a driver for the unknown device but could not find one.

How did you delete it???? I have a reg cleaner but dont know how to delete the thing.

I suppose that as I oten connect phones and different camera disks it might be associated perhaps one didnt instal properly or something.

Thanks.

Like this post
robinofloxley

Likes # 0

Run Ccleaner, click registry then scan and fix issues. Repeat once or twice to check all fixed.

Also, you can use USB Deview to check for old USB devices.

When downloaded and extracted, right click and Run As Administrator.

Right click suspect device that is Not Connected and Uninstall.

Be Careful not to uninstall your keyboard/mouse/Touchpad (HID Human Interface Devices)

Like this post
robinofloxley

Likes # 0

Note: accidental uninstalls can be fixed by unplugging/replugging device. Or reboot. It's not the end of the world!

Like this post
highside

Likes # 0

Buteman/robinofloxly, Thanks for help removed it and ran CC all looks clean now

Like this post

Reply to this topic

This thread has been locked.



IDG UK Sites

Android One vs Android Silver vs Google Nexus: What is the difference?

IDG UK Sites

Apple updates MacBook Pro line-up: Price cuts & spec boosts for 6 MacBook Pro models

IDG UK Sites

Long live the internet fridge: the Internet of Things is coming

IDG UK Sites

How Prometheus' colourist Juan Ignacio Cabrera gave a tense, edgy feel to Chosen