How to Install Windows 11 From a USB Drive: Complete Guide

With Windows 10 support having ended in October 2025, a lot of PCs are being upgraded or freshly reinstalled with Windows 11 right now.

A bootable USB drive is still the most reliable way to do a clean install, faster than a DVD, and it works even if your current Windows installation is too broken to update itself.

This guide covers the entire process: checking whether your PC actually qualifies for Windows 11, creating the bootable USB the official way (and the workaround way, for older hardware), and installing it step by step.

Quick Answer: How to Install Windows 11 From USB

1. Check your PC meets Windows 11’s requirements. TPM 2.0 and Secure Boot are the two that trip people up most.
2. Download the official Media Creation Tool from microsoft.com and create a bootable USB (8 GB minimum), or use Rufus if your hardware doesn’t officially qualify.
3. Boot your target PC from the USB via the BIOS/UEFI boot menu.
4. Follow the on-screen setup prompts to complete installation.

Full details, including what to do if your PC fails the compatibility check, are below.

Related read: Windows 10 End of Support: What Are Your Options in 2026?

Step 1: Check If Your PC Meets Windows 11’s Requirements

This is the step most guides ( including our old one ) used to skip, and it’s the single biggest source of failed installs. Windows 11 has stricter hardware requirements than Windows 10 did, specifically around security hardware.

Minimum requirements:

• Processor: 1 GHz or faster, 64-bit, 2+ cores, from Microsoft’s supported CPU list (generally Intel 8th Gen / AMD Ryzen 2000 or newer)
• RAM: 4 GB minimum (8 GB+ strongly recommended for smooth day-to-day use)
• Storage: 64 GB or larger drive
• System firmware: UEFI with Secure Boot capability
• TPM: Trusted Platform Module (TPM) version 2.0
• Graphics: DirectX 12 compatible with a WDDM 2.0 driver

TPM 2.0 and Secure Boot cause the vast majority of “incompatible PC” failures, often on machines that are otherwise perfectly capable. Many PCs from 2018 onward actually have a TPM chip but ship with it disabled in the BIOS by default.

To check your TPM status:

1. Press Win + R, type tpm.msc, and hit Enter.
2. If it shows “Version 2.0,” you’re good. If TPM doesn’t appear at all, it may just need enabling in BIOS (often listed as “PTT” on Intel systems or “fTPM” on AMD systems).

The fastest way to check everything at once: download Microsoft’s free PC Health Check app from their website. It scans your processor, RAM, storage, TPM, Secure Boot status, and graphics in one click and tells you exactly what’s missing, if anything.

Step 2: Prepare a USB Flash Drive

You’ll need a USB drive with at least 8 GB of storage. 16 GB gives you comfortable headroom. Note that the entire drive will be wiped during this process, so back up anything on it first.

Formatting the drive isn’t a separate manual step you need to do beforehand. Both tools in the next section will handle formatting automatically as part of creating the bootable media. Just make sure the drive is empty or contains nothing you need.

Step 3: Create a Bootable Windows 11 USB Drive

You have two realistic paths here, depending on whether your PC passed the compatibility check in Step 1.

Option A: Official Method – Windows 11 Media Creation Tool (For Compatible PCs)

This is Microsoft’s own tool and the simplest, most trustworthy route if your hardware meets the requirements.

1. Go to Microsoft’s official Windows 11 download page.
2. Under Create Windows 11 Installation Media, click Download Now.
3. Run the downloaded MediaCreationTool.exe file.
4. Accept the license terms, then choose Create installation media (USB flash drive, DVD, or ISO file) for another PC.
5. Select your language and edition (or leave “Use the recommended options for this PC” checked).
6. Choose USB flash drive when asked which media to use.
7. Select your USB drive from the list and click Next. The tool will download Windows 11 and write it to the drive automatically.
8. Click Finish once it completes.

For creating a Windows 11 bootable USB drive, the SanDisk Ultra 64GB USB 3.0 Flash Drive (available on Amazon) is a reliable choice, offering enough storage and faster data transfer for a smoother installation media creation process.

Option B: Rufus (For Older or “Unsupported” Hardware)

If your PC fails the TPM/Secure Boot check but you still want to run Windows 11 on it, Rufus is the tool most people reach for. It’s free, open-source, and unlike the official Media Creation Tool, it can create installation media that bypasses the TPM, Secure Boot, and RAM checks entirely.

A quick caution before you go this route: Microsoft doesn’t officially support Windows 11 on hardware that fails these checks, and updates or stability on bypassed installs aren’t guaranteed long-term.

It generally works fine in practice, but it’s worth knowing you’re outside Microsoft’s supported path.

1. Download Rufus from rufus.ie and run it.
2. Insert your USB drive and select it under Device.
3. Under Boot selection, click Select and choose a Windows 11 ISO file, or click the dropdown arrow next to the button and choose Download to have Rufus fetch the official ISO directly from Microsoft’s servers for you.
4. Leave Partition scheme as GPT (for UEFI systems, the vast majority of PCs from the last decade) and File system as NTFS.
5. Click Start.
6. A dialogue will appear with Windows 11 customisation options, including a checkbox to bypass the TPM, Secure Boot, and RAM requirements. This is usually checked by default. Confirm your choices and continue.
7. Rufus will warn you that all data on the USB drive will be erased. Click OK to proceed.
8. Wait for the process to finish; this typically takes 10–20 minutes depending on your USB speed and internet connection.

Step 4: Boot Your PC From the USB Drive

Once your bootable USB is ready:

1. Insert it into the PC where you want to install Windows 11.
2. Restart the computer.
3. As it boots, press your motherboard’s boot menu key, commonly F2, F10, F12, Esc, or Delete, depending on the manufacturer. If you’re not sure which one, it’s usually shown briefly on screen during startup, or check your PC/motherboard manual.
4. Select your USB drive from the boot menu list.

If the USB drive doesn’t appear in the boot menu at all, you may need to enable USB booting or disable Secure Boot temporarily in your BIOS/UEFI settings. Though if you’re doing a supported install, Secure Boot should stay enabled once Windows is actually installed.

Step 5: Install Windows 11

Once the PC boots from the USB drive, the Windows Setup screen appears.

1. Select your language, time/currency format, and keyboard layout, then click Next.
2. Click Install now.
3. Enter your product key if prompted, or click I don’t have a product key to continue and activate later.
4. Select the Windows 11 edition you want to install (this matters only if your key doesn’t already determine it).
5. Accept the license terms.
6. Choose your installation type:
   • Upgrade: Keeps your files, apps, and settings (only available if you’re running the installer from inside an existing Windows session, not booted from USB).
   • Custom: Install Windows only (advanced): A clean install; this is what you get when booting from USB, and it will erase the selected drive.
7. Select the drive/partition where you want to install Windows 11. For a truly clean install, you can delete existing partitions here and let Windows create a fresh one. But only do this if you’ve already backed up everything you need.
8. Click Next and let the installer run. This typically takes 20–45 minutes, depending on your hardware, noticeably faster on an SSD than an older hard drive.
9. Your PC will restart a few times automatically during this process. That’s normal.
10. Once complete, you’ll land in the Windows 11 out-of-box setup (region, account sign-in, privacy settings) to finish configuring your new installation.

Related read: Which Is Better for You: Dual Boot vs Virtual Machine?

Common Mistakes to Avoid

• Skipping the TPM/Secure Boot check. This is the #1 reason installs fail partway through or get blocked entirely. Check tpm.msc and your BIOS settings before you even create the USB.
• Using a USB drive smaller than 8 GB. The installer will simply fail to fit the files.
• Forgetting to back up your data before a clean install. “Custom: Install Windows only” erases the selected partition. There’s no undo.
• Not disabling Secure Boot when it’s actively blocking a Rufus-bypassed install, then forgetting to leave it as-is for a fully supported one. These are two different scenarios. A compatible PC should keep Secure Boot on; only a knowingly bypassed install on unsupported hardware might need it toggled.
• Assuming the free upgrade path still works the same way it did years ago. Free upgrades from a genuine Windows 10 license are still generally available, but always confirm your specific eligibility on Microsoft’s site rather than assuming.

Related read: How to Recover Shift-Deleted Files in Windows 10/11

Myth vs. Fact

Myth: “You can’t install Windows 11 on a PC without TPM 2.0, period.” Fact: Tools like Rufus can bypass the check, and installation will generally succeed. But Microsoft doesn’t officially support or guarantee long-term update stability on that path.

Myth: “The Media Creation Tool and Rufus do the same thing.” Fact: Both create bootable Windows 11 media, but only Rufus offers the option to bypass hardware requirement checks. The Media Creation Tool strictly follows Microsoft’s official, supported installation path.

Myth: “A clean install from USB always wipes your files.” Fact: It only wipes the specific partition or drive you select during setup. Files on other drives or partitions are untouched, though backing up first is always the safer move.

Related read: How to Test a Linux Distribution Online Without Installing

Troubleshooting

USB drive not showing up in the boot menu: Confirm the drive was created with GPT partitioning for a UEFI system, and check that “Fast Boot” isn’t skipping the boot menu prompt. You may need to disable it in the BIOS temporarily.

“This PC can’t run Windows 11” message during setup: This usually means TPM 2.0 or Secure Boot isn’t enabled in the BIOS, even if the hardware supports it. Recheck your BIOS settings, or use Rufus’s bypass option if your hardware genuinely doesn’t support these features.

Media Creation Tool doesn’t detect your USB drive: Try a different USB port (preferably directly on the motherboard, not a hub), or test the drive on another PC. It may be faulty.

Installation stuck or frozen for a long time: Give it extra time on older hardware or mechanical hard drives before assuming it’s failed; 45 minutes plus isn’t unusual on slower drives. If it’s genuinely frozen for over an hour with no disk activity, restart and try again.

Copying a Windows image larger than 4 GB to a FAT32 drive: This shouldn’t come up with the Media Creation Tool or Rufus, since both format the USB drive with the correct file system (NTFS or FAT32 with split files) automatically for Windows 11’s larger install image.

Conclusion

Installing Windows 11 from a USB drive is still one of the most reliable ways to get a clean, fresh setup. This is especially useful now that Windows 10 support has ended and a lot of PCs are making the jump.

The key difference from the Windows 10 process most people remember is the hardware compatibility check. Confirm your TPM and Secure Boot status first, and the rest of the process is genuinely straightforward.

If your PC doesn’t officially qualify, Rufus gives you a way through. Just go in knowing you’re on an unsupported path.

You can buy a genuine Windows 11 product key from Amazon if you need one.

Related read: First 10 Things to Do After Installing Windows

Frequently Asked Questions

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