What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
First identify whether you’re running setup.exe from inside Windows or booting the PC from USB or DVD made with the ISO. The first route can be an in-place upgrade or reinstall with options to keep data; booting from media is a clean-install route that removes files, apps, customizations, and settings. Record the exact error code and where it appears before choosing a fix.
Choose the right Windows 11 installation path
An ISO is an image file, not an installation method by itself. It can be used to launch Setup while Windows is running, or to create media from which you boot the PC. Microsoft describes these as different installation paths, with different outcomes for your data. See Microsoft’s Windows upgrade and installation error guidance.
| # | Preview | Product | Price | |
|---|---|---|---|---|
| 1 |
|
Microsoft Windows 11 PRO (Ingles) FPP 64-BIT ENG INTL USB Flash Drive | $149.97 | Buy on Amazon |
| 2 |
|
Microsoft Windows 11 (USB) | $122.00 | Buy on Amazon |
| 3 |
|
64GB Bootable USB Installer for Windows 11, 10 & 7 Home/Pro with WinPE Repair Tools | $19.71 | Buy on Amazon |
| Path | When it fits | Data impact |
|---|---|---|
Run setup.exe from within Windows |
Windows still starts and you want to upgrade or reinstall it. | Setup may offer choices to keep personal files and apps, keep files only, or keep nothing. The choices offered depend on the installation. |
| Boot from installation media | You want a fresh start or the existing Windows installation does not boot. | A clean installation removes personal files, apps, manufacturer customizations, and settings. |
Before taking either route, decide what must be preserved. Back up important files before reinstalling. For a clean install, identify the intended disk and partitions carefully; do not delete partitions on other disks. Microsoft’s reinstallation instructions explain the data consequences.
Start with the exact error and basic checks
Write down the full error code and note when it appears: while downloading, during the compatibility check, while files are copied, at the first restart, or after Setup finishes. Then use Microsoft’s general fixes and look up the exact code in its error-code guidance; a similar-looking message can have a different cause.
#1 Best Overall
- MICROSOFT WINDOWS 11 PRO (INGLES) FPP 64-BIT ENG INTL USB FLASH DRIVE
- Disconnect nonessential accessories and external drives, then retry. This can rule out a connected-device conflict.
- If Setup reports insufficient space, check the available storage on the relevant drive and free space as needed.
- Keep track of the stage at which the error occurs. An error before the first restart points to a different part of Setup than one that appears after the PC restarts.
What error 0xC1900202–0x20008 can indicate
Microsoft says this code range may mean the PC does not meet the minimum requirements to download or install the Windows 11 upgrade. It is a reason to check compatibility, not proof that one specific component is responsible. See Microsoft’s error-code table.
Fix “This PC can’t run Windows 11” by checking compatibility
Do not assume a compatibility block is a random Setup failure or try to bypass it as a routine fix. Microsoft’s current requirements include TPM version 2.0 and UEFI firmware that is Secure Boot capable. Check the PC’s specifications and firmware configuration against the Windows 11 system requirements. If a firmware setting needs attention, follow the device maker’s instructions; the available settings and steps vary by PC.
Rank #2
- Less chaos, more calm. The refreshed design of Windows 11 enables you to do what you want effortlessly.
- Biometric logins. Encrypted authentication. And, of course, advanced antivirus defenses. Everything you need, plus more, to protect you against the latest cyberthreats.
- Make the most of your screen space with snap layouts, desktops, and seamless redocking.
- Widgets makes staying up-to-date with the content you love and the news you care about, simple.
- Stay in touch with friends and family with Microsoft Teams, which can be seamlessly integrated into your taskbar. (1)
Fix a PC that will not boot from the Windows 11 USB or DVD
If the Windows Setup screen never appears, the PC may not be set to start from the installation drive. Confirm that the media was created correctly, then consult the computer manufacturer’s instructions for changing boot order. There is no single boot-key sequence that applies to every device. Microsoft covers this issue in its installation-media reinstallation guidance.
If you create USB media using Microsoft’s media-creation route, use a blank flash drive with at least 8 GB of capacity. The process deletes the drive’s contents, so copy anything important elsewhere first. Microsoft also provides for creating an ISO for use with a virtual machine or to make DVD media; those uses do not require preparing a USB drive. See Microsoft’s installation-media instructions.
Rank #3
- [Win OS Install or reinstall] — Boot from the USB to install or reinstall Win 11, 10, or 7 Home & Pro editions. Includes OS installations and reinstallations media plus WinPE Utility Suite.
- [WinPE Repair & Recovery Tools] — Boot into the included WinPE utility suite to backup system and important files, troubleshoot startup problems, repair boot issues, recover data, recover Win User accounts password, and diagnose common PC problems.
- [All-in-One PC Rescue USB] — Combines Win 11, 10, and 7 installation media with PC repair, recovery, and diagnostic tools on one bootable 64GB USB drive, helping you troubleshoot and restore a computer without needing multiple discs or downloads.
- [Support] — Full instructions are included in packaging plus a printable copy of the instructions with troubleshooting information on the device. Also, a video “How to boot from a bootable USB drive.mp4” to help guide you through starting a PC from a USB drive. If you need help using the USB please contact us for assistance, we are here to help.
- [Video] - If you are new to booting from a USB drive or need a refresher see our video "How to boot from USB drive" both in description and on USB device.
Choose repair or reinstall without risking the wrong data
If Windows still starts, run setup.exe from the installation media while signed in and review the available keep options before continuing. Select the option that matches what you intend to retain; do not assume files and apps will be kept automatically.
If you boot from the media for a clean installation, treat it as a destructive operation. Back up files first, verify the target disk, and avoid deleting partitions on any disk you do not intend to erase. Microsoft states that a clean installation removes personal files, apps, device-manufacturer customizations, and changes made in Settings.
Resolve edition and activation before reinstalling
The Windows edition you reinstall must match the license for the device. If you are unsure which edition is licensed or whether the device has a digital license, resolve that before starting a destructive clean install. Microsoft says Windows usually activates automatically after reinstall when the device connects to the internet; a significant hardware change can affect activation. See Microsoft’s edition and activation guidance.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
Free tools Windows power users keep installed
One-click scans. No signup required.
