Window Live Onecare back up files --how to delete

I was running Windows LiveOnecare beta on my computer and I used an external drive for the one care to create a backup on. After running the one care, the system lost internet connection. I did a system restore on the computer to get the internet connection back. The internet connection dropping was an ongoing problem with this computer. I am on Windows Vista. The issue is that there is 1gb of backup date created by Windows Live onecare on the usb drive and I want to delete it but I cannot. So can anyone tell me how to delete this file?

This is something i found on another thread

There is an easier way by the use of cacls

Use this line as example

If you have a folder on the E drive called Windows OneCare and the folder in it called Backup 2005 has the files in it, then do this:

cacls "e:\Windows OneCare\Backup 2005" /t /g administrators:F

cacls "<drive letter>:\<path>" /t /g administrators:F



Do NOT put a \ after the path

This will strip the permissions from the folder and should allow you to delete it :)


do that and then delete the files!

Step 1: Enter Safe Mode

===================

1. Restart the computer.

2. Keep pressing the F8 key until the Windows Startup menu appears.

3. Choose Safe Mode, and press ENTER.



NOTE: In Safe Mode, your system display and desktop will look and perform differently than in Normal Mode. This is only temporary. To go back to Normal Mode, we just need to restart the computer.



Step 2: Take ownership of the folder

===========================

1. Right-click the backup folder you want to delete, and then click Properties.

2. Click the Security tab, and then click OK on the Security message (if it appears).

3. Click Advanced, and then click the Owner tab.

4. In the Name list, click your user name, or click the Administrators group. Click to select the "Replace owner on sub containers and objects" check box.

5. Click OK. The following message will appear:



All permissions will be replaced if you press Yes.



6. Please Click Yes.

7. Click OK, then try to remove the folder again.

Go to the below link. It is a similar thread to remove the Windows One Care backup file. The backup files can only be removed if you have ownership of the file. To see to procedure and solution for the similar issue go the below link. Hope it will definitely help you.
http://forums.techarena.in/windows-software/1189720.htm