1.the bluetooth device sound is a system sound that is enabled by default in windows 7, to turn the sound on you can try the different options.
1. click on the start button and then type "sounds" in the search box.
2. click on the "check system sound that appears"
3. in the "sounds" tab , scroll down to the " device connect" or "device disconnect" event, and then select the sound you want to play.
4.click on the " apply button" and t hen click on " ok" to save your changes.
2.
The "OEM partition" is a partition on your hard drive that is created by the manufacturer to store the factory image and recovery media. It is not a
problem and is used to restore the computer to its original factory settings.
As for the blue question mark that appears on the Local Disk, it could be caused by a problem with the hard drive or a problem with the drive's file system. To troubleshoot
the issue, you can try the following:
- Run the chkdsk command to check for and fix any errors on the drive.
- Run the disk cleanup utility to clear up any unnecessary files on the drive.
- Run a disk defragmenter to optimize the drive.
- Run a disk error-checking tool to check for any errors on the drive.
- Run a disk diagnostic tool to check the drive's health status.
If these steps don't solve the problem, it's possible that the hard drive is failing and you should consider replacing it.
