Simple Startup Manager

Simple Startup Manager is an easy-to-use software application that shows all programs which automatically run every time you turn on your computer, giving you the possibility to disable the ones you don't need, in order to speed up Windows boot time.

Pay close attention to the setup phase

During the installation operation, the tool offers to download and install an additional tool that it doesn't actually need to function normally, as well as to make some modifications to your web browsers. Unless you're interested in this, make sure to clear the offer's box before proceeding to the next wizard step.
Speaking of setup, it's mandatory to install .NET Framework unless you already have it, because Simple Startup Manager was built using this software framework and cannot run without it.

View and disable autorun programs

Once launched, the tool autodetects and lists all autostart programs, showing you the item and file names, locations in the registry and startup folder, along with status (enabled or disabled).
Right-click an entry from the list to view available commands in the context menu. It's possible to disable an item (prevent the app from auto-running on next system startups), enable a previously disabled program, remove a program's entry from this list (Delete), visit its location in Windows Explorer, launch the program on the spot (Execute Command), as well as move the app to the Current User or All Users folders (to make it available to the current users only, or all of them).

Straightforward tool for preventing autostart apps

All things considered, Simple Startup Manager provides you with a fast and easy method for stopping unwanted applications from getting automatically launched every time you turn on your computer, thus increasing the OS loading time. However, it's not exactly a fully featured startup manager because it doesn't implement options for adding new programs to the autostart lineup.