A file with the .REG file extension is a Registration file used by the Windows Registry. These files can contain hives, keys, and values.
REG files can be created from scratch in a text editor or can be produced by the Windows Registry when backing up parts of the registry.
What Are REG Files Used For?
There are two major ways to edit the Windows registry:
Think of a REG file as a set of instructions for changing the Windows Registry. Everything in a REG file explains the changes that should be made to the current state of the registry.
In other words, and in general, any differences between the REG file being executed and the Windows Registry will result in an addition or removal of whatever keys and values are involved.
For example, here are the contents of a simple 3-line REG file that adds value to a specific key in the registry. In this case, the goal is to add the data necessary for the classic Blue Screen of Death fake-out:
That CrashOnCtrlScroll value isn't included in the registry by default. You could open Registry Editor and create it yourself, manually, or you could build those instructions in a REG file and have it added automatically.
Another way to look at REG files is to think of them as tools to edit the registry. With a REG file, you can save lots of time when making the same registry changes on multiple computers. Just create one REG file with the changes you want to make and then apply them instantly on multiple PCs.
How to View, Change, and Build REG Files
REG files are text-based files. Looking back at the example above, you can clearly see the numbers, path, and letters that make up the REG file. This means you can open a REG file and read everything in it, as well as edit it, using nothing more than a text editor.
Windows Notepad is the text editor included in Windows. You can view or edit a .REG file using Notepad if you right-click (or tap and hold) the REG file and choose Edit.
If you like, you can use Windows Notepad every time you need to view or edit a REG file, but there are other free text editor tools that are easier to work with if you plan on working with these files a lot.
Since REG files are nothing more than text files, Notepad, or one of those other text editors, can also be used to build a brand new REG file from scratch.
Using our example from above yet again, all you have to do to create a REG file is open your favorite text editor and then type those instructions exactly as they're written. Next, choose All Files (*.*) as the Save astype, and save the file as something memorable, with the .REG extension of course, like FakeBSOD.REG.
It's very easy to accidentally pass over the Save as type option when saving a file as a REG file. If you forget to do this and instead save the file as a TXT file (or any type of file other than REG), you won't be able to use it for registry editing.
Just like you see in the example from above, all REG files must follow the following syntax in order for Registry Editor to understand them:
Although neither the contents of a REG file nor the keys in the Windows Registry are case sensitive, some registry values are, so keep that in mind when authoring or editing REG files.
How to Import/Merge/Open REG Files
To 'open' a REG file could mean opening it for editing or opening it to execute it. If you want to edit a REG file, see the How to View, Change, and Build REG Files section above. If you want to execute the REG file (actually do what the REG file is written to do), keep reading..
Executing a REG file means to merge it with, or import it to, the Windows Registry. You literally combine the contents of the .REG file with the other registry keys and values that already exist. Whether your intention is to use the REG file to add, delete, and/or change one or more keys or values, merging/importing is the only way to do it.
Always back up the Windows Registry before merging your custom-made or downloaded REG file with it. You can skip this step if you're restoring a previous backup with this REG file but please don't forget this important step in all other cases.
How To Edit A Bat File
To 'execute' a REG file (i.e. merge/import it with the Windows Registry), just double-click or double-tap on the file. This process is the same no matter the contents of the REG file — a previously made backup you're restoring, a registry tweak you authored, a downloaded 'fix' for a problem, etc.
Depending on how your computer is set up, you may see a User Account Control message that you need to accept in order to import the REG file.
If you're sure that the REG file you've chosen is safe to add to the Windows Registry, then click or tap Yes on the prompt that follows to confirm that that's what you want to do.
That's it! Depending on the changes that the REG file made to the Windows Registry, you may need to restart your computer.
If you need more detailed help than the quick outline we have above, see How to Restore the Registry in Windows for a more thorough how-to. That piece is focused more on the restore-from-a-backup process but in reality, it's the same process as merging a REG file.
On Windows 10, a batch file is a special kind of text file that typically uses a .bat extension, which can include one or multiple commands that Command Prompt can understand and run in sequence to perform various actions.
Usually, you can just input commands manually to perform a particular task, but a batch file simplifies the work of retyping commands, saving you time.
Also, even though, there are other tools, such as PowerShell, that write more advanced scripts, using batch files with Command Prompt is an effective option when you need to run commands to change system settings, automate routines, and launch applications or websites.
In this Windows 10 guide, we walk you through the steps to get started creating and running your first batch file on your computer.
How to create a batch file on Windows 10
The process to write a batch (script or batch script) file is easy. You only need a text editor and a little bit of knowledge to run commands on Command Prompt. In the steps below, we detail the steps for creating a simple and advanced batch file, as well as the steps to write a script to change the system settings.
Writing a simple batch file
To create a simple batch file on Windows 10, use these steps:
Once you complete these steps, you can double-click the file to run it, or you can use the steps below to learn the different ways to execute a batch file on Windows 10.
Writing an advanced batch file
To create an interactive batch file that executes multiple commands, use these steps:
After you complete these steps, you can run the script double-clicking the .bat file, or you can use the steps below to learn the different ways to execute a batch on Windows 10.
Writing an actionable batch file
You're not limited to showing information on a Windows 10 console. You can also write non-interactive batch files to perform virtually any task. For example, to write a batch file that runs a specific command without the need for user interaction, use these steps:
Once you complete these steps, when you run the batch file, the command will map a shared network folder with the settings you specified without the need to open Command Prompt to type the commands manually. Although we only specified one command in the file, you can include as many commands as you like, as long as you write one per line.
How to run a batch file on Windows 10
On Windows 10, there are a least three ways to run a batch file. You can run a batch on-demand (using File Explorer or Command Prompt). You can create a scheduled task using the Task Scheduler. Or you can place the script in the Startup folder to run it every time you sign into your computer.
Running batch file on-demand
When you need to run a batch file on-demand, you can use File Explorer or Command Prompt.
File Explorer
To run a batch file using File Explorer, use these steps:
After completing the steps, the batch will run each command in sequence displaying the results on the screen.
Command Prompt
To run a batch file from Command Prompt, use these steps.
Once you run the command, the output will display on the screen regardless of the script containing the 'PAUSE' command or not.
Running batch file on scheduled
To schedule a batch file on Windows 10, you'll need to use the Task Scheduler with these steps:
Once you complete these steps, the task will be saved, and it'll run the batch file on the schedule you specified.
These instructions cover the steps to create a basic task. If you want to create a more customizable task, use this guide.
Running batch files on startup
Alternatively, if you want to run a batch file every time that you sign into your account, use these easy steps:
After completing the steps, every time you sign in to your account, the batch file will automatically execute in sequence the commands you wrote.
This guide is focused on Windows 10, but the ability to use batch files has been around for many years, which means that you can refer to these instructions if you're still running Windows 8.1, Windows 7, or an older version.
More Windows 10 resources
For more helpful articles, coverage, and answers to common questions about Windows 10, visit the following resources:
A file with the .BAT file extension is a batch processing file. It's a plain text file that contains various commands used for repetitive tasks or to run groups of scripts one after another.
Software of all types use .BAT files for various purposes — for example, to copy or delete files, run applications, and shut down processes.
BAT files are also called batch files, scripts, batch programs, command files, and shell scripts, and may instead use the .CMD extension.
Working with .BAT files can be very dangerous to not only your personal files but also important system files. Take extreme caution before opening one.
How to Open a .BAT File
Even though the .BAT extension immediately makes Windows recognize such a file as executable, .BAT files are still composed entirely of text commands. This means that any text editor, such as Notepad (which is included in all versions of Windows), can open a .BAT file for editing.
To open the .BAT file in Notepad, right-click it and choose Edit from the menu. You might find more advanced text editors that support syntax highlighting, helpful when editing a .BAT file.
Opening the .BAT file in a text editor will display the code that makes up the file. For example, this is the text inside a .BAT file that's used to empty the clipboard:
Here's another example of a .BAT file that uses the ping command to see if the computer can reach a router with this particular IP address:
Again, take great care when opening executable file formats like .BAT files that you have received via email, downloaded from websites you're not familiar with or even created yourself. Check our list of executable file extensions for other file extensions to avoid and why.
Using a .BAT file in Windows is as simple as double-clicking or double-tapping it. You don't need to download any special program or tool.
To use the first example from above, entering that text into a text file with a text editor and then saving the file with the .BAT extension will make the file an executable that you can open to immediately erase anything saved to the clipboard.
The second example, which uses the ping command, will ping that IP address; the pause command keeps the Command Prompt window open when the process is finished so you can see the results.
If your file doesn't seem to be a text file, then you're probably not dealing with a .BAT file. Check the file extension to make sure you aren't confusing a .BAK or .BAR (Age of Empires 3 data) file with a .BAT file.
How to Convert a .BAT File
As shown, the code of a .BAT file is not hidden in any way, which means it's very easy to edit. Because certain instructions in a .BAT file (such as the del command) can wreak havoc on your data, converting the BAT file to a format like EXE to make it more like an application file might be wise.
You can convert a .BAT file to an .EXE file using a few command line tools. You can read how to do this at How-To Geek.
Instead of searching for a .BAT to SH (bash shell script) converter to use the .BAT commands in programs such as Bourne Shell and Korn Shell, try just rewriting the script using the Bash language. The structure of the two formats is rather different because the files are used in different operating systems. See this Stack Overflow thread and this Unix Shell Scripting tutorial for some information that might help you translate the commands manually.
Usually, you can't change a file extension (like .BAT) to one that your computer recognizes and expect the newly renamed file to be usable. An actual file format conversion using one of the methods described above must take place in most cases. Given that the .BAT files are just text files with a .BAT extension, however, you can rename it to .TXT to open it with a text editor. Remember that doing a .BAT-to-.TXT conversion will prevent the batch file from executing its commands.
Instead of manually changing the file extension from .BAT to .TXT, you also can open the batch file in Notepad for editing and then save it to a new file, choosing .TXT as the file extension before saving instead of .BAT.
This is also what you need to do when making a new .BAT file in Notepad, but in reverse: save the default text document as .BAT instead of .TXT. In some programs, you might have to save it in the All Files file type, and then put the .BAT extension on it yourself.
I am trying to write a utility as a batch file that, among other things, adds a user to the 'Deny logon locally' local security policy. This batch file will be used on hundreds of independent computers (not on a domain and aren't even on the same network).
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I assumed one of the following were my options, but perhaps there's one I haven't thought of.
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3 Answers
You can use the
ntrights utility to edit account privileges.
The user right 'SeDenyInteractiveLogonRight' is what you want to edit, likely as part of the computer's logon.
The following command would deny jscott interactive logon:
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jscottjscott
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I looked for so long too. I figured out the answer!
To check the current state :
This next line will make the change. It will set the process creation to Enabled.
Check the state again and you'll see the change.
Alternatively, you could change all of the 'detail tracking' policies, as 'process creation' is a subcategory of 'detail tracking'. Like this:
OatBoatOatBoat
you could export a template using the GUI
make desired changes on reference PC,
SECPOL.MSC > Actions > export Policy > secpol.inf
then use
wrap it in your favorite scripting language (Batch, PS, VBScript)
and it will overwrite the current policy
only concern would be if there are issues with overwriting the current policy
I've never done it with security policy, but have before with power profiles, and the process looks almost identical, similar to the NET.exe command.
Matt HamendeMatt Hamende
Not the answer you're looking for? Browse other questions tagged windowsgroup-policybatch-filevbscriptsecurity or ask your own question.
In this chapter, we will learn how to create, save, execute, and modify batch files.
Creating Batch Files
Batch files are normally created in notepad. Hence the simplest way is to open notepad and enter the commands required for the script. For this exercise, open notepad and enter the following statements.
Saving Batch Files
After your batch file is created, the next step is to save your batch file. Batch files have the extension of either .bat or .cmd. Some general rules to keep in mind when naming batch files −
The above screenshot shows how to save the batch file. When saving your batch file a few points to keep in mind.
Executing Batch Files
Following are the steps to execute a batch file −
Modifying Batch Files
Following are the steps for modifying an existing batch file.
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