I have an Acer Aspire 4520, AND the os is WIN XP. when I check the device manager there is an unknown device on the list. Under properties for this device it gives the following as the device instance id (ACPI\WEC1023\4&36128FA&0) Does anyone know what this is ?Does it have something to do with having no sound?
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Re: unknown device on the device list
Unknown devices usually have to do with a utility driver. Download all utility drivers for your machine at Acer's support site and this should take care of it. When you hit the right driver it will find and tell you exactly what the unknown device is.
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Try downloading the drivers from the Acer WEB site. Make sure youselect the model of your laptop and the XP or Vista version of the drivers youthat require and it matches the Windows version that is installed on yourlaptop. Use this link to get to the Acer support: - http://www.acersupport.com/drivers_download.aspx
In this case i would recommend you to please check if you have the Camera listed under the imaging devices in Device manager.
To get into the device manager
1) If using XP as the Operating system
Right click on "My Compuetr" icon, select properties and then select "Hardware" tab from the top and then select "Device manager"
Check if you have the camera listed under the device manager
2) If using Vista/ Win 7
Click Start and in search box type "Device manager" and press Enter
Check for the camera under the device manager
windows 7 has a compatibility program built in for addressing those issues from the previous operating system(XP)
go to start and in the search window
type in compatibility
this program will help you by running the program to test its functionality,
it will bring up a list of programs and ask you to select the program your having issues with,
then it will give your operating systems and service packs to test against,
at the end it will ask you if you want to save these settings.Y/N?
If the program runs ok then save the settings and it should continue to work from there.
Shut down and restart should embed these settings ,
Test again for function,
If no luck run the program again
You say that your system is dual booting,why?
windows 7 leaves XP for dust,
remove xp its taking up valuable space on your hard drive and possibly interfering with your systems operations,
Normally the hard drive will only allow one operating system on it,even if you have partions.
Fine tuning is all your looking for so let us know your outcome thanks
If you do a windows back up
which system is it going to back up?
normally it will write over the last backup you made and the new one replaces it,
Update your Unknown device while in you device manager
Update the device then shut down and restart
Uninstall the device from device manager ,right click on the device then uninstall,
Shut down and restart,
the device will be automatically found by your Operating System and reinstalled automatically too,
If your laptop is the 4520, you need to download and install one of the wireless drivers (last 2 on the list) from http://www.laptops-drivers.com/acer-notebooks/free-download-driver-acer-aspire-4520.html (Check to see which one your laptop has, in Control Panel/System/Hardware/Device Manager.
If it's the 4530, look here http://seoroot.com/blog/driver-downloads/acer-aspire-4530-and-acer-aspire-4520g-windows-xp-drivers-download.html
Ok.. This is the downloads site for ACER support site. ftp://ftp.work.acer-euro.com/notebook/aspire_4520/vista/Drivers However there are two wireless LAN drivers in that directory. You should find out which one is yours. To do this click start->right-cllcik on computer. When the system window opens click on device manager located under tasks on the left hand side. When the device manager opens double-click on network adapters and one of the two devices(Atheros wireless LAN or Broadcom wireless LAN) will be listed. Download the respective driver and your wireless would be up and runnin' ftp://ftp.work.acer-euro.com/notebook/aspire_4520/vista/Drivers
to check the sound driver -
click start - right click my computer - properties - device manager then look down the list and see if there is a yellow ? beside sound, video and game controllers. If this is the case first try to update the driver there otherwise go to http://support.acer-euro.com/drivers/notebook/as_4520.html
Hope this helps