Yes, it can. If you don't know exactly what you are doing, you can really hose your computer.
Yes its very necessary to backup first before editing registry. You can also use a system utility software RegInOut.
The registry is a database of all configuration and operating information for the operating system. Warning: Editing the registry is considered to be a very dangerous process, and could (if done incorrectly) cause the operating system to fail and the computer to not start. Be very, very careful and follow Microsoft's recommendations for backing up and being able to restore the registry, and also to know exactly what you are doing. This is complicated by the fact that the registry editing tools do not give you a chance to confirm your actions - they happen immediately - so you get no second chances.
You can edit registry but it is recommended that you do not edit registry if you are not a programmer because editing registry incorrectly can cause havoc.
To edit your registry you will need to click your start button>hit run>then type "regedit" without quotes. This will open your registry editor.
There is no way to do this.
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The registry can be edited manually in Microsoft Windows by running regedit.exe or regedt32.exe in the Windows directory. However, careless registry editing can cause irreversible damage. Thus, performing backups of the registry before editing it is highly recommended by Microsoft. The easiest way to change the registry is by pressing the start button and select run. Then type in regedit or regedit.exe and you will find the registry editor in windows.
You can search for the registry. When you see it, right click on it and run as an administrator. After doing this, you should be able to make changes.
The operating system will not allow limited users to change any of the system's settings or applications or add/removing programs or registry. Only Administrators can do all these things. User can only view the data. so the in the user account when user want to access registry he can not access and it shows an error as "Registry editing is Disable by your Administrator" I didn't find the above answer useful. Visit the related link where you will find how to enable or disable registry.
go to run and type regedit and also be care full of editing registry , first make a back up of it
start>run>regedit Do remember to backup your registry whenever you are about to do an registry update You can run the Registry Editor by simply clicking 'Run' from the Start Menu, and entering 'Regedit' NOW FOR SOME CAREFUL WARNINGS concerning the registry. If you intend to edit the registry it is highly advisable to make a backup. The Registry Editor is an advanced tool for viewing and changing settings in your system registry, which contains information about how your computer runs. Windows stores its configuration information in a database (the registry) that is organized in a tree format. Registry Editor allows you to inspect and modify the registry, normally you do not need to do so, and making incorrect changes can break your system. Incorrectly editing the registry may severely damage your system. You should use tools and programs that provide safer methods for editing the registry, such as Regcleaner.
Click the Start button, then click run, and type in "regedit". A window should open showing all of the registry files in the operating system. Be careful however since editing registry files could have major repercussions on your operating system.