Windows XP mode with Virtual PC will not install / two problems

Question

Hello!  I posted this on the Microsoft Windows Answers forums and a moderator there suggested I post it here instead.  I also searched here for similiar problems but did not find anyone having the exact same problem as I am having.  Also for
some reason it won't let me post links, so I had to remove them.
I have Windows 7 Pro (64 bit) and I want to follow the instructions here:
LINK REMOVED
to install and run Virtual PC so I can see if some legacy XP software I have will work.
I am using a Lenovo W520 laptop with an i7 at 2.4ghz with 8GB of RAM.
I followed step 1/step 2 and downloaded the 500MB file for Windows XP Mode.  I installed it. 
Problem #1:  There's a note at the bottom of the page which says "Once you have installed Windows XP Mode, click the Windows 7 Start button then select All Programs > Windows Virtual PC > Windows XP Mode to begin setup. For information on how
to set up Windows Virtual PC and Windows XP Mode, check out "Running Windows XP Mode with Windows Virtual PC" on the Support and Videos page. "
I am looking at the All Programs view and there's absolutely nothing which says "Windows Virtual PC" or "Windows XP Mode".  I go look at Programs and Features in the control panel and indeed, Windows XP mode is installed (and taking up 1.13GB). 
I uninstall it and re-download the 500mb file and re-install it.  It still doesn't show up in the All Programs view, doesn't add an icon to my desktop or quick launch bar, or do anything which suggests a way to start it.  It resides in C:\Program
Files\Windows XP Mode, but there are no executeable files there.
Problem #2: Step 3 says  "Download Windows Virtual PC".  When I click on that button, the download starts, but never works (I tried multiple times, including after a clean reboot, with nothing except Internet Explorer running) ; I get an error
window which says:
"Windows Update Standalone Installer
Installer encountered an error: 0x80070422
The service cannot be started, either because it is disabled or because it has no enabled devices associated with it." 
 What is going wrong?
 Thanks.
Note; After posting this questio on Windows Answers, some related questions popped up and I read through them.  One post points to a posting on the Sevenforums ->LINK REMOVED which suggests that Problem #2 is my real problem because I follow
along perfectly until step #5-E and then I get the 0x80070422 error message.

Answer 1

Problem 2 is the issue, without installing a virtualization program like WVPC, XP Mode can't be used.
Try this:
Method 1:
I would suggest you to follow the steps and check.
To start the Windows Installer service in Windows 7 checks the steps below.
a) Click on start.
b) Type Services.msc in the start search bar and press enter.
c) Scroll down and Double-click on the service named "Windows Installer".
d) Check the value in the 'Startup type:' field.
e) If it's currently set to "Disabled", then this could cause the issue.
f) Change it by selecting "Manual" from the drop-down box.
Method 2:
Step 1: Make sure Volume Shadow Copy Service is set to automatic and started. To do this, follow these steps:
a) Click on Start-Run, type services.msc, the click on OK.
b) When the Services window loads, navigate to the “Volume Shadow Copy Service ", the double click on it to open it,
c) Make sure the "Startup Type" says "Automatic" and
started. If it doesn't, use the drop down menu to change it.
d) If it already says: "Automatic", then click on the "Recovery" tab at the top, and change the "First Failure" line to "Restart the Service", then click on "apply", then OK.
Step 2: Run Check disk to fix any bad sectors on the hard drive.
a. Click on start and in the start search bar type CMD, right click on the command prompt icon in the programs area and then click on run as administrator.
b. At the command prompt type chkdsk /f and then press enter.
Now, type in chkdsk /r
Note: CHKDSK would try to recover bad sectors on the hard disk, during this process there are chances of DATA loss from that particular sector.
Step 3: Disable the security software and then start the backup; follow the steps mentioned in the link below
Disable-antivirus-software
http://windows.microsoft.com/en-US/windows7/Disable-antivirus-software
Important: Enable the security software back once everything is done.
Method 3;
“0x8007042c” error message when you try to start Windows Firewall
http://support.microsoft.com/kb/2530126
Note: The Microsoft Safety Scanner expires 10 days after being downloaded. To rerun a scan with the latest anti-malware definitions, download and run the Microsoft Safety Scanner again.
Note: Any data files that are infected may only be cleaned by deleting the file entirely, which means there is a potential for data loss.
“0x80070422” error message when you try to enable Windows Firewall
http://support.microsoft.com/kb/2617842