WinToUSB (also called Windows To USB) is a free tool, with which you can install and run a fully-functional Windows 11/10/8/7 on an external hard drive or USB drive. You can create your portable Windows OSes from an ISO, WIM, ESD, SWM, VHD, VHDX image file or a CD/DVD drive.
Besides, it allows you to clone an existing Windows OS installation (Windows 7 or later) to a USB drive as a portable Windows. Either way, you can take this portable Windows USB everywhere and use your customized OS on any computers. Moreover, WinToUSB supports creating bootable WinPE USB drive, which can help you transfer the contents of WinPE to the USB drive and make a bootable USB.
It functions like Windows To Go, a feature of Windows 8/8.1/10 Enterprise. But WinToUSB does not require Microsoft certified USB drives and it supports all versions of Windows 11/10/8/7.
Why need a WinToUSB alternative?
Although WinToUSB tool does better than Windows to Go, some users report it does not work as expected. Below is a real user case:
"I wanted to install Windows on a USB drive so that I can use it on different computers. I heard about WinToUSB and gave it a try. At about seventy percent (with three retries) I get an error "Copy file failed.(0x0000008000B40000)". I am using Windows 7 Home Premium, trying to install Windows 7 Ultimate onto a Kingston DataTraveller 3.0 (USB 3.0). What can I do? I tried three times."
To tackle with WintoUSB not working issue, you can check whether the ISO file is corrupted, If it is damaged, you can download the ISO from the Microsoft official site and try again. If you still get the error message, you had better find a free alternative to WintoUSB.
Best WinToUSB alternative for Windows 11/10/8/7 (Freeware)
It supports both USB 3.0 and USB 2.0. If you want a higher creating process speed and better performance, USB 3.0 is recommended. Besides, It is compatible with 32-bit and 64-bit of Windows 10/8/7 and Windows XP/Vista. Now, we will show you how to use this free WinToUSB alternative tool to create portable Windows USB step by step. Download the free alternative first of all.
▶To migrate the current operating system to a USB drive will take a long time. Therefore, we recommend using SSD as the destination device, because it is much faster in reading & writing, and can shorten the whole OS migration progress.
▶Apart from making bootable USB to run OS from it on any other computers conveniently, AOMEI Partition Assistant Standard also supports creating bootable USB drive to repair Windows boot issues. The most commonly-used function for OS boot problem is “Rebuild MBR”, which can help fix MBR in Windows 7/8/10/11.
Therefore, if the WinToUSB fails to work, or you want to evade the restrictions of WinToUSB, you can try this free and powerful WinToUSB alternative. Besides, the AOMEI Partition Assistant Pro provides many other advanced functions. For example, you can recover lost partitions, quick partition a hard drive, secure erase any branded SSD, or convert system disk to GPT without data loss.