BeRegOwner

Sometimes, modifying certain registry keys on your computer cannot be accomplished due to various limitations, most of which are caused by insuficient permissions.
However, this situation can be easily avoided by turning to third-party applications such as BeRegOwner that enables you to take ownership of the target entries.

No installation

Being a portable tool, you do not need to setup this application on your computer, as just unpacking the archive and launching the corresponding executable lets you access its controls entirely.
Furthermore, its portability ensures that you can run it from removable storage media such as external HDDs or USB flash drives, as well.

Simplistic design

BeRegOwner packs a minimalistic, user-friendly interface that encompasses a few interactive functions that can be easily understood and operated by a wide range of users. However, given that modifying registry entries can severely damage your computer, it is recommended that you do not do so unless you have advanced PC skills or previous experience with similar software.
No form of local help documentation is available, so turning to a user guide in case you encounter any difficulties is not a viable option.

Take ownership of multiple registry keys

You can rely on this application if you need to take ownership of several registry keys on your system at the same time. However, note that in order for this program to run as intended, you need to provide it with Administrator rights.
After launching it, you need to add one or more registry keys that you need to take ownership of by either inputting their locations or importing them from a REG file. To perform the permission modification operation you simply need to press the Take Ownership button. It is possible to view a log after the process is finished, where a list of modified keys is displayed.

Portable mass registry ownership utility

All things considered, BeRegOwner is a lightweight, portable tool that lets you take ownership of several registry keys on your system. It comes with a simplistic interface, packs a few interactive controls and provides you with no form of help documentation. Unfortunately, it does not come with a built-in registry browser, as you need to input the location of the desired keys manually or load them from a REG file.