Thread: Fix “Windows Installer Service could not be accessed” error in Windows Vista

How to fix Windows Installer Service could not be accessed error in Windows Vista?


It may happen that while installing a program using Windows Installer you may encounter the following error dialog box:



Figure 1


To counter this problem you can choose any of the following options:

Option 1: Using Windows Services

1) Open Start menu and type services.msc in the search box and press Enter key



Figure 2


2) Click Continue button if prompted by UAC

3) Navigate to the Windows Installer service and double click it



Figure 3


4) Choose Manual from the Startup type dropdown list



Figure 4


5) Click Start button

6) Click OK button


Option 2: Using Registry fix

If the Option 1 does not work then follow these steps:

1) Download the file wifix.zip given at the bottom of the post under Attached files section

2) Save it to a desired location

3) Open the file wifix.zip and double click the wifix.reg file



Figure 5


4) Click Continue button if prompted by UAC


5) Click Yes button to confirm



Figure 6


6) Click OK button the process is successful

Honestly if I could hug you right now I would!
thx so much.
:]
This totally fixed my issue.

Originally Posted by Trav1s420

Honestly if I could hug you right now I would!
thx so much.
:]
This totally fixed my issue.

Hello Trav1s420,

Welcome to Itechtalk.

I'm glad that this tutorial helped you.

Thanks.