plz help with the following: To be safe, back up the entire registry using one or more of the methods discussed earlier. Open the Registry Editor by entering the regedit command. Locate a key that...

plz help with the following:

1. To be safe, back up the entire registry using one or more of the methods discussed earlier.


2. Open the Registry Editor by entering the regedit command.


3. Locate a key that contains the entries that make up the list of installed software. Use the following criteria to decide which key to locate: