1. Update= Windows Update. Start> All Programs > Windows Update. When the window opens, click "Check for updates" in the left hand pane.
2. Software accelerators are programs that "speed up" downloads and such. I can't imagine you have any if you don't know what they are. LOL I didn't have any and had to look it up when I first saw it too.
3. LOL As I suspected you didn't read the whole page I linked. It tells you what the trusted list is and how to get there:
Method E: Add the Windows Update Web site and the Microsoft Update Web site to the Trusted Sites list
Note If your third-party firewall is still disabled from Method B, do not open e-mail messages, surf the Web, or use instant messenger at this point.
To add the Windows Update Web site and the Microsoft Update Web site to the Trusted Sites list, follow these steps:
1. Start Windows Internet Explorer.
2. On the Tools menu, click Internet Options.
Note If you are using Internet Explorer 7, and the menu is not available, press the ALT key on your keyboard to access the Internet Explorer Menu.
3. Click the Security tab, and then click Trusted Sites.
4. Click Sites, and then click to clear the Require server verification (https:) for all sites in this zone check box.
5. In the Add this Web site to the zone box, type the following addresses, and then click Add after you type each address:
* # 64.4.21.125
http://update.microsoft.com * # 64.4.21.125
http://windowsupdate.microsoft.com 6. Click OK two times.
7. Try to install the updates again.
If this method resolved your issue and you were able to install updates successfully, you should re-enable your third-party firewall if it is still disabled. To do this, see step 2 in Method B.
If this method did not resolve your issue, continue with Method F.
4.
Try this Hit continue and follow the instructions.
5. See number 1 for the explination of update. Did you run the Advanced method A which is:
Advanced Method A: Remove entries for Windows Update and Microsoft Update from the hosts file
Some programs may modify the hosts file to control DNS name resolution. Sometimes, an entry for the Windows Update Web site or for the Microsoft Update Web site may exist in the hosts file.
To remove entries from the hosts file, follow these steps:
1. Click Start, and then click Run.
2. Copy and then paste (or type) the following command in the Run box, and then press ENTER:
notepad %windir%\system32\drivers\etc\hosts
Note If you are prompted to select a program to open the hosts file, click Notepad, click to select the Always use the selected program option, and then click OK.
3. In Notepad, remove or remark any lines in the hosts file that contain entries for Windows Update so that they are not read when the file is accessed. To do this, put the number sign (#) in front of any line that contains "microsoft" and "update." For example, add the number sign (#) to the beginning of the following entries:
* # 64.4.21.125
http://update.microsoft.com * # 64.4.21.125
http://windowsupdate.microsoft.com * #
http://update.microsoft.com 4. On the File menu, click Save.
5. Exit Notepad.
6. Restart the computer.
Note from me, Microsoft part over: This list is long. It contains the blacklisted sites from Spybot.
6. OK.
EDIT NOTE: The update links are not supposed to be links. This site keeps making them links, I edit them and unlink them and the site then relinks them. This site wins.