How To Make Windows Installer Work In Safe Mode

Windows Installer Service doesn't work in Safe Mode

Nuts…

Sometimes there is a defect on a computer that does not allow it to work except in safe mode. Many a time technicians can trace the problem and they need to uninstall a defective program. However, since Windows in not operating except in Safe Mode then how do you reach the Windows Installer that installs and uninstalls software normally. You can uninstall a program in Safe Mode if you know how to.

Why you need to uninstall in Safe Mode

There are a number of reasons why you sometimes need to uninstall a program in Safe Mode. It is possible that it is not shutting down in the normal Windows installer because the software has become corrupted. It could be possible that some other program is interfering with the functioning of the software, preventing it from functioning normally. If a third party program is interfering with the software then the best way to correct it is on Safe Mode.

However, Windows Installer just doesn’t work in Safe Mode… hence this Howto.

How To Enable Windows Installer Service In Safe Mode

Here is how you can make windows installer to work under regular Safe Mode.

First you need to add a registry entry for to enable Windows Installer in Safe . Here is what you can run from the command line (note this is all on one line):

REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\MSIServer" /VE /T REG_SZ /F /D "Service"

Then start the Windows Installer Service by running:

net start msiserver

How To Enable Windows Installer Service In Safe Mode With Networking

Here is how you can make windows installer to work under Safe Mode with Networking. Here is what you can run from the command line (note this is all on one line):

REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\MSIServer" /VE /T REG_SZ /F /D "Service"

Then start the Windows Installer Service by running:

net start msiserver

What about software that does not use Windows installer? Well, they will probably uninstall just fine, or not, your mileage may vary. I hope this helped somebody -JP

Article written by Jesse Perry (JP)

Hi there, I am Jesse Perry. I have run an IT Service business for over a decade, been working in the Computer Industry for much longer.

Please comment with your real name using good manners.

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