It is correct that you will not be able to install any apps in safe mode. It is because the safe mode is the mode where only the minimal features are loaded up or activated. For any apps to install you need to activate the installer service. To do that I will give you the steps in the end.
Method 1 to increase the performance:
Step 1. In run window type "msconfig" and hit enter without quotes.
2. go to services tab
3. check the "hide all microsoft services"(Compulsory step to be done or else it is going to be more problem)
4. uncheck all the services which you think is not necessary. Keep in mind that the antivirus services should be running.
Method 2 to enable installer service
1. In run window type "cmd" and hit enter without quotes.
Type this in a command prompt:
REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\MSIServer" /VE /T REG_SZ /F /D "Service"
net start msiserver
This will start the Windows Installer Service.
3. try installing the apps now.
Thanks and Regards
NB: This is my first post, I apologize if you find any mistake in my explanation.
Please let me know if you found this post useful.
Edited by aswinvijayakumar, 10 December 2012 - 01:52 AM.