How to Fix Problem - Cannot access anything in control panel and cannot install Microsoft security essentials error 0x008004ff56.?

Cannot access anything in control panel and cannot install Microsoft security essentials error 0x008004ff56.

Original title : I can't access anything in the control panel
 
I can't access anything in the control panel-"cannot find windows\system32\rundll.exe" but the file is in that directory. Also every program I open prompts me to choose a program to open it.
I had to use internet explorer to open internet explorer-that one worked.
I tried MSEinstall.exe -as was suggested in another post with a similar issue- and got an error code 0x008004ff56 and a link for a  required package I apparently needed- I downloaded the required package, restarted, tried to install mseinstall.exe again and
I got the same error message.
I just inherited this laptop from a friend so I don't have the windows XP disc.
Any way I can fix this issue on-line?

Keys to the Problem Cannot access anything in control panel and cannot install Microsoft security essentials error 0x008004ff56.

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Manually editing the Windows registry to fix Error Cannot access anything in control panel and cannot install Microsoft security essentials error 0x008004ff56.

Caution: Unless you an advanced PC user, we DO NOT recommend editing the Windows registry manually. Using Registry Editor incorrectly can cause serious problems that may require you to reinstall Windows. We do not guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

• Click the Start button.
• Type "command" in the search box... DO NOT hit ENTER yet!
• While holding CTRL-Shift on your keyboard, hit ENTER.
• You will be prompted with a permission dialog box.
• Click Yes.
• A black box will open with a blinking cursor.
• Type "regedit" and hit ENTER.
• In the Registry Editor, select the Error 0x9C-related key (eg. Windows Operating System) you want to back up.
• From the File menu, choose Export.
• In the Save In list, select the folder where you want to save the Windows Operating System backup key.
• In the File Name box, type a name for your backup file, such as "Windows Operating System Backup".
• In the Export Range box, be sure that "Selected branch" is selected.
• Click Save.
• The file is then saved with a .reg file extension.
• You now have a backup of your MACHINE_CHECK_EXCEPTION-related registry entry.

Another Safe way to Repair the Problem: Cannot access anything in control panel and cannot install Microsoft security essentials error 0x008004ff56.:

 

 

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