Hi Julie,

With the issue description, I understand that you are unable to install Bluetooth Drivers on your Windows 7 machine. I will certainly help you with the query.

This issue might occur due to corruption in system files or user profile corruption. Let’s follow below mentioned steps and check if that helps:

Method 1 : Run the System File Checker tool (SFC.exe)

System File Checker is a utility in Windows that allows users to scan for corruptions in Windows system files and restore corrupted files. It will scan your system files and to repair missing or corrupted system files in Windows. To run the SFC scan, refer to the Microsoft article below.

http://support.microsoft.com/kb/929833

Try method 2, if the issue persist

Method 2: Create a New User Account

Please follow the below mentioned steps to create a New User Account:

1. Open Control Panel by searching in the search box, clicking User Accounts, and then clicking User Accounts.
2. Click Manage another account. If you're prompted for an administrator password or confirmation, type the password or provide confirmation.
3. Click Create a new account.
4. Type the name you want to give the user account, click an account type, and then click Create Account.
5. Restart the PC.

Once you create a New User Account, you may try to install the drivers and check if it works on not.

Hope this information is helpful. Please write back to us with the results for further assistance, we'll be glad to assist you.

I reinstalled Windows 7 again and also the drivers and this fixed my issue.

I think the mistake that I did was that I installed multiple drivers for Bluetooth adapter which caused the problem.

Just downloading the genuine driver for the adapter helped.