Rename multiple files at once on Windows 11: three simple methods

You have a hundred photos named "IMG_4821", "IMG_4822", "IMG_4823" and you would like to give them a clear name such as "Jobsite-Trois-Rivières-01"? Renaming each file one at a time can take an hour and invite mistakes. The good news is that Windows 11 lets you rename multiple files in a few seconds, with no paid software and no technical knowledge.

In this practical guide, we show you three ways to rename several files at once, from the simplest to the most powerful. Whether you are an individual sorting family photos or a small business in the Mauricie filing hundreds of documents, you will find the method that fits.

1. The quick method with File Explorer

This is the simplest technique, built into Windows 11, perfect when your files belong to the same series (photos from an event, invoices from one month, screenshots). Here is how to rename several files in one batch:

• Open the folder that holds your files in File Explorer.
• Select every file you want to rename. Use Ctrl+A to select them all, or hold Ctrl down and click each file you want.
• Press the F2 key (or right-click and choose "Rename").
• Type the base name you want, for example "Invoice-June", then press Enter.

Windows then renames every file and adds a number in parentheses: "Invoice-June (1)", "Invoice-June (2)", and so on. The whole thing takes under five seconds. This method leaves each file extension intact (.jpg, .pdf, .docx), so there is no risk of making a file unreadable.

One small tip: sort your files by date or by name before selecting them. The numbering follows the display order, which saves you from ending up with a jumbled sequence.

2. PowerRename: the free advanced renaming tool from Microsoft

The F2 method has a limit: it gives every file the same name with a plain number. If you need to replace a word, keep part of the original name or number things your own way, the PowerRename tool is made for you. It is part of Microsoft PowerToys, a free and official set of utilities.

Installing PowerToys

Open the Microsoft Store, search for "PowerToys" and install the app signed by Microsoft Corporation. Once it is installed, PowerRename shows up directly in the Windows 11 right-click menu.

Using PowerRename

• Select your files, right-click, then choose "Rename with PowerRename".
• In the "Search for" field, type the text to replace (for example "IMG").
• In the "Replace with" field, type the new text (for example "Team-meeting").
• A live preview shows you the result before you commit. Click "Apply" when everything looks right.

PowerRename also handles automatic numbering, upper and lower case, and even regular expressions for advanced users. It is the ideal tool for a small business that has to rename many files consistently, for example bringing hundreds of client documents in line all at once. Our managed IT services team regularly deploys PowerToys at our clients in Trois-Rivières to automate this kind of repetitive task.

3. Batch renaming with Command Prompt

For those who like to keep full control, Command Prompt (CMD) can rename several files with a single line. It is fast and powerful, especially for changing an extension or applying a precise pattern.

• Open the folder you want, click in the address bar, type cmd and press Enter.
• To change every .txt extension to .csv, type: ren *.txt *.csv
• To add a prefix, you need a small loop instead, but for most everyday needs the ren command is enough.

A word of caution: Command Prompt asks for no confirmation and offers no preview. Always make a backup copy of your files before using it. If you are not comfortable with command lines, stick to methods 1 and 2, which are safer.

4. Naming best practices for your business

Renaming several files is good. Adopting a clear naming convention from the start is better still. A good naming scheme saves the whole team a huge amount of time and makes searching easier. Here is what we recommend:

• Start with the date in YYYY-MM-DD format (for example 2026-06-14). Your files then sort themselves in the right order.
• Avoid accents and special characters (é, à, /, *, ?) which sometimes cause trouble during backups or transfers.
• Replace spaces with hyphens for better compatibility with the web and with cloud systems.
• Be consistent: if the whole team names things "Invoice-Client-2026", nobody wastes time searching.

For a small business in the Mauricie or in Quebec City handling thousands of documents, these simple rules head off duplicates, lost files and version mix-ups. Solid file organization is also the first step toward an effective backup and cybersecurity strategy.

Frequently asked questions

How do you rename several files at the same time on Windows 11?

Select every file with Ctrl+A, press F2, type the new name and hit Enter. Windows adds a number to each file automatically. For more options, use the free PowerRename tool from Microsoft PowerToys.

Can I undo a file renaming done by mistake?

Yes. Right after the operation, press Ctrl+Z in File Explorer to undo it. PowerRename also offers a preview before you commit, which cuts the risk of error a great deal.

Is there a limit to how many files I can rename?

No, no hard limit. File Explorer and PowerRename handle thousands of files at a time without trouble. On very large batches, expect a few seconds of processing, and think about making a safety copy first.

Need a hand with your files in Trois-Rivières?

Organizing your files well is the foundation of efficient and secure IT. If your team is losing time filing documents or you want to automate these repetitive tasks, our team can help. Take a look at our IT services for small businesses and feel free to write to us through our contact page to talk about your needs. OKTO Solutions supports businesses in Trois-Rivières, the Mauricie and everywhere in Quebec.