Update my OS Vista Home Premium to Windows 7 restore my missing file of the Windows Installer Service (and perhaps my RPC end point mapper file)?

Iolo System Mechanic deep cleaning has totally deleted my Windows Installer Service folder (and perhaps my RPC end point mapper file) on my Vista Home Premium PC. I looked into MSCONFIG and they are gone!  It has been too long to do a system restore or other functions of the round trip. Q: if I buy the Windows 7 upgrade, it also installs?  It will make Windows Installer service (and RPC end point Mapper) reappear?  If not, how to get support from Microsoft?  I already tried all 4 methods in article ID 2642495 re: find the Windows Installer service.  I have now 10 MS Important that cannot install updates because missing the file of the Windows Installer service.  Personal support of Iolo System Mechanic were NO help.  Thanks in advance.

Hello

What service pack is isntalled with Windows Vista?

Method 1:

Check out the link and follow the steps.

Windows Installer 4.5 is available

http://support.Microsoft.com/kb/942288

Method 2:

If you plan to buy win7 you can check the following items.

Run Upgrade Advisor before upgrading Vista to Windows 7. Check out the link.
Windows 7 Upgrade Advisor
http://Windows.Microsoft.com/en-us/Windows/downloads/Upgrade-Advisor

Method 3:
Check out the link and follow the steps.
Upgrade Windows Vista to Windows 7
http://Windows.Microsoft.com/en-us/Windows7/help/upgrading-from-Windows-Vista-to-Windows-7
You can also check:
Upgrade Windows Vista to Windows 7 (custom installation)
http://Windows.Microsoft.com/en-us/Windows7/help/upgrading-from-Windows-Vista-to-Windows-7-custom

Tags: Windows

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