RMPrepUSB

Free plan Windows

What RMPrepUSB is

RMPrepUSB is a Windows 32-bit utility for partitioning and formatting drives, particularly USB drives. It can install or repair boot code, clear write-protect or read-only flags, add bootloaders such as MSDOS, FreeDOS, Syslinux, and grub4dos, and test reported drive capacity and sequential read and write speeds. A 32-bit QEMU MBR emulator can boot from USB with full write access. The utility can back up a whole drive, partitions, or selected portions to an image and restore from one; the download also includes the RMPartUSB.exe command-line tool. A portable version runs from an extracted folder without installation. The product page describes MBR creation for drives under 2 TB and says GPT support is minimal. It is freeware for private and public non-commercial use; commercial use and redistribution require permission or licensing. Its plan is free. The listed stable release is v2.1.746 dated 2022-05-29; v2.2.4 is an experimental beta that may contain bugs.

Who it suits

RMPrepUSB suits Windows users who need drive partitioning, formatting, bootloader setup, drive tests, or USB image backup and restore. Its stated free use covers private and public non-commercial use; commercial use requires permission or licensing.

What it does well

Can install or repair boot code
Tests reported capacity and sequential speeds
Backs up and restores drive images
Portable version runs without installation
Includes a command-line utility

What to know first

GPT support is described as minimal
MBR creation supports drives under 2 TB
Commercial use requires permission or licensing
The stable release is dated 2022-05-29

Limits

The free plan is for private and public non-commercial use; commercial use requires permission or licensing. MBR drive creation is described for drives under 2 TB, while GPT support is minimal.

Plans

Plan	Billed and limits	Price
RMPrepUSB	Free for private use; public non-commercial use; commercial use and redistribution require permission or licensing	Free

As rmprepusb.com lists them, read 3 Oct 2026. The maker's own page has the final word.

Getting started

Open https://www.rmprepusb.com/ on a Windows computer.
Choose the RMPrepUSB download; the listed stable release is v2.1.746.
Run the utility, or extract the portable version to a folder and run it without installation.
Use RMPartUSB.exe from the download if you need the command-line utility.

Verdict

RMPrepUSB combines drive preparation, bootloader tools, testing, emulation, and image backup and restore in a Windows utility. Check the limited GPT support and usage terms before relying on it for a particular drive or commercial use.

Questions

What does RMPrepUSB cost?

The RMPrepUSB plan is listed as free. Commercial use and redistribution require permission or licensing.

Is there a free plan or trial?

RMPrepUSB is freeware for private and public non-commercial use. There is no free trial.

Which platforms does it support?

It is a Windows 32-bit utility. The listed platform information says it has no macOS or Linux app.

Is RMPrepUSB open source?

No. It is closed source, and its source code is not available.

Which partition schemes does it support?

The product page describes MBR drive creation for drives under 2 TB and says GPT support is minimal.

Where can users get help?

The site directs users to the reboot.pro forum or the author's Contact Me page. Licensed use receives reasonable-endeavours support.

Facts from RMPrepUSB's own pages

Boot code: It can install or repair boot code and clear write-protect or read-only drive flags. · rmprepusb.com, 3 Oct 2026
Boot emulation: It includes a 32-bit QEMU MBR emulator that can boot from a USB drive with full write access. · rmprepusb.com, 3 Oct 2026
Bootloaders: The utility can install bootloaders including MSDOS, FreeDOS, Syslinux and grub4dos. · rmprepusb.com, 3 Oct 2026
Command line: The download includes the command-line utility RMPartUSB.exe. · rmprepusb.com, 3 Oct 2026
Current release: The download page lists v2.1.746 dated 2022-05-29 and labels v2.2.4 as an experimental beta that may contain bugs. · rmprepusb.com, 3 Oct 2026
Drive images: It can back up a USB drive, its partitions, or selected portions to an image file and restore from an image. · rmprepusb.com, 3 Oct 2026
Drive testing: It can test drives for fake reported capacity and perform a sequential read and write speed test. · rmprepusb.com, 3 Oct 2026
Intended users: The site describes the utilities as free for private use and public non-commercial use, with commercial use subject to permission or licensing. · rmprepusb.com, 3 Oct 2026
Limits: The product page describes MBR drive creation as supporting drives under 2 TB and says GPT support is minimal. · rmprepusb.com, 3 Oct 2026
Portable use: A portable version can be extracted to a folder and run under Windows without installation. · rmprepusb.com, 3 Oct 2026
Purpose: RMPrepUSB is a Windows 32-bit utility for partitioning and formatting drives, especially USB drives. · rmprepusb.com, 3 Oct 2026
Security and liability: The licensing page says use is at the user's own risk and disclaims responsibility for data loss or other damage. · rmprepusb.com, 3 Oct 2026
Source and licensing: RMPrepUSB is freeware and closed source; its source code is not available, and public redistribution requires permission. · rmprepusb.com, 3 Oct 2026
Support: The site directs users to the reboot.pro forum or the author's Contact Me page for help; licensed use receives only reasonable-endeavours support. · rmprepusb.com, 3 Oct 2026

Where RMPrepUSB stands on Freedom251

Bootable USB Software#18 of 38