Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to experiment with the windows registry safely [title] Read about the windows registry before you start working on it. [step] Understand what it does, the various keys and components of the registry and how each affects windows. Microsoft provides detailed information on how to experiment with the windows registry safely and gives descriptions of the various keys and values.

Ending1: Pay special attention to any entries that can make opening the registry unsafe or unusable. [title] Get examples in the search box that shows things you might want to try. Ending2: [title] Decide who will be operating the registry. [step] Young computers and people who need to boot up before operating the system are generally more likely to use it. Ending3: [title] Make sure you have a windows start up disk. [step] Create one if you don't have it already. Ending4: Your registry will provide you with a list of features, elements, functions, hardware, software, and more. When you open your registry, you will be able to open the hardware packages that you will be working with.

Answer format: ending1/ending2/ending3/ending4