Windows 11 Setup Stuck at 46%? How to Fix It

Windows 11 Setup stuck at 46% does not always mean the installation has failed. That percentage commonly appears while Setup is checking for updates, drivers, and compatibility information, so it can remain unchanged even while work continues in the background.

The right response depends on where you see 46%. An upgrade launched from Windows needs different troubleshooting from a clean installation started with a USB drive. This guide helps you identify the stalled stage, protect your files, and fix the likely cause without jumping immediately to a clean install.

First, Identify Which Setup Screen Is Stuck

Look at the text displayed near the percentage before changing anything.

Screen or situation	Most likely area to investigate
Getting updates or Checking for updates	Internet connection, Windows Update cache, VPN, or Microsoft update servers
Installing Windows while still on the desktop	Drivers, security software, system files, storage space, or compatibility
Blue or black full-screen installation after a restart	Setup is applying files and may simply need more time
Bootable USB installation	Installation media, USB port, storage controller, target disk, or hardware
Setup returns to Windows with an error code	Use the code and Setup logs to identify the failed component

This distinction prevents unnecessary repairs. Clearing the Windows Update cache may help an upgrade that is stuck while downloading updates, but it will not repair a badly created bootable USB.

How Long Should Windows 11 Setup Stay at 46%?

There is no universal time limit. Storage speed, internet speed, available space, and the number of updates Setup must evaluate all affect the duration.

Give Setup more time when:

• The spinning indicator is still moving.
• The drive activity light flashes occasionally.
• The fan speed changes.
• The computer has a mechanical hard drive.
• The screen says it is getting updates.

Thirty to ninety minutes at one percentage can occur on a slow PC. Waiting several hours becomes less reasonable when the screen, disk activity, and network activity have all remained unchanged.

Avoid holding the power button while Windows is in a full-screen installation phase unless it has clearly stopped responding for an extended period. Interrupting Setup while it is moving system files can leave Windows unable to start.

The Safest First Recovery

Setup that is stuck on the desktop is less risky to stop than the full-screen phase that begins after a restart.

When a Back or Cancel option still responds:

1. Cancel Setup normally.
2. Restart Windows.
3. Disconnect nonessential USB devices.
4. Confirm that the system drive has adequate free space.
5. Run Setup again and choose not to download updates during installation.

When the PC has already restarted into the full-screen installation phase, wait longer. Use a forced shutdown only when there has been no visible or hardware activity for several hours and no normal control responds.

Windows often restores the previous installation after an interrupted upgrade. Let that rollback finish. Do not repeatedly power the computer off while it is undoing changes.

Run Setup Without Downloading Updates

The most targeted fix for a setup process stuck at 46% on the Getting updates screen is to skip Dynamic Update for that attempt. Windows can install cumulative and driver updates after the operating-system upgrade finishes.

1. Restart Windows after cancelling the stalled attempt.
2. Disconnect any VPN or proxy connection.
3. Mount a current Windows 11 ISO or reconnect the installation USB.
4. Run setup.exe from inside your existing Windows installation.
5. When Setup asks how it should download updates, select Change how Setup downloads updates.
6. Choose Not right now.
7. Continue the installation.

Choose Not right now when the upgrade repeatedly freezes while Setup is getting updates.

This choice does not permanently disable Windows Update. It only prevents Setup from downloading updates, drivers, and optional features during that installation attempt.

For the complete supported upgrade process and backup precautions, see how to upgrade from Windows 10 to Windows 11.

Prepare Windows Before Retrying the Upgrade

A cleaner starting environment removes several common causes at once.

Free Enough Storage Space

Open Settings > System > Storage and check the Windows drive. Setup needs room for downloaded files, temporary installation data, the new Windows image, and rollback files.

Microsoft’s published minimum free-space figures are not a comfortable working target for every upgrade. I would create at least 30 GB of free space when possible, especially when upgrading from Windows 10 or installing a large feature update.

Use Settings > System > Storage > Temporary files to remove safe temporary data. Do not manually delete the recovery partition or unfamiliar folders to make room.

Disconnect Nonessential Hardware

Leave only the display, keyboard, mouse, power adapter, and internet connection you need. Disconnect:

• External drives and memory cards
• Printers and scanners
• USB hubs and docking stations
• Game controllers
• Audio interfaces
• Secondary displays when they are not needed

Microsoft includes removing nonessential hardware among its general fixes for Windows installation failures. A device or its driver can delay detection or block the upgrade. Microsoft’s Windows installation-error guidance also recommends updating Windows, checking drivers, freeing storage, and removing third-party antivirus software.

Install Pending Updates and Restart

Open Settings > Windows Update, install normal pending updates, and restart the PC. Check Windows Update again after the restart.

This may sound contradictory after choosing Not right now in Setup. The difference is timing: first bring the current Windows installation into a healthy, fully restarted state, then stop the upgrade installer from getting stuck while fetching another set of updates.

Temporarily Remove Third-Party Security Software

Pausing antivirus protection from its tray icon may not unload its file-system filter driver. When Setup repeatedly stalls at the same point, use the vendor’s normal uninstaller, restart, complete the upgrade, and reinstall the product afterward.

Windows Security remains available after most third-party antivirus products are removed. Make sure you have the installer and licence information before uninstalling paid security software.

Repair Windows System Files

Damaged servicing components can prevent Setup from reading or replacing Windows files correctly.

Open Terminal (Admin) or Command Prompt (Admin) and run:

DISM /Online /Cleanup-Image /RestoreHealth

Let DISM finish, then run:

sfc /scannow

Restart Windows after both commands complete, even when they report no integrity violations.

Do not keep rerunning SFC when it cannot start or repeatedly returns the same Windows Resource Protection error. Use the specific steps in SFC scannow not working to repair that problem first.

Check Drivers and Compatibility Before Another Attempt

Windows Setup evaluates installed drivers during an upgrade. Storage, chipset, graphics, network, and third-party filter drivers deserve the most attention.

1. Right-click Start and open Device Manager.
2. Look for devices with a yellow warning symbol or listed as unknown.
3. Obtain important driver updates from the PC or component manufacturer’s support page.
4. Remove obsolete VPN clients, disk utilities, virtual-drive software, and old security tools that install low-level drivers.
5. Restart before launching Setup again.

Avoid mass-updating drivers through an unknown driver-download utility. A newer version number does not guarantee that a driver is correct for the device.

An error beginning with 0xC1900101 strongly points toward a driver-related upgrade failure. Use the 0xC1900101 installation error guide when Setup provides that code instead of continuing with generic remedies.

Reset the Windows Update Components Only When Updates Are Stuck

Resetting the update cache is appropriate when Windows Update itself fails, Setup cannot download updates, or every attempt freezes on Getting updates. It is not the first fix for a bootable USB installation.

Start with the built-in troubleshooter:

1. Open Settings > System > Troubleshoot > Other troubleshooters.
2. Find Windows Update.
3. Select Run.
4. Apply any recommended repair and restart.

When the problem persists, follow how to clear the Windows Update cache. That guide covers the services and cache folders carefully, so the commands do not need to be duplicated here.

Use Fresh Windows 11 Installation Media

An old or incomplete ISO can make Setup appear to stall at a consistent percentage. Download a fresh copy from Microsoft’s Windows 11 download page, then either mount the ISO or recreate the USB drive.

For an in-place upgrade, open the media from Windows and run setup.exe.

For an upgrade that keeps files and installed applications:

1. Sign in to the existing Windows installation.
2. Mount the ISO or connect the USB drive.
3. Open the drive in File Explorer.
4. Run setup.exe.
5. Confirm that Keep personal files and apps is available before selecting Install.

Booting directly from the USB starts a clean-install workflow. It does not provide the same keep-apps upgrade path, so do not boot from the USB when your goal is to preserve installed programs.

A Different Fix for a USB Installation Stuck at 46%

A clean installation that stalls after booting from USB is not using the Windows Update path in the same way. Focus on the installation media and hardware connection.

Try these checks:

1. Recreate the installer using a current Microsoft ISO or Media Creation Tool.
2. Use another reliable USB flash drive.
3. Connect it directly to the computer instead of through a hub.
4. Try another USB port, preferably a motherboard port on a desktop.
5. Disconnect other internal or external drives when practical, leaving only the target drive.
6. Restore default BIOS or UEFI settings if aggressive overclocking or custom storage settings are active.
7. Test the system drive and memory when multiple installation attempts stop at different percentages.

Do not randomly change AHCI, RAID, Intel VMD, Secure Boot, or TPM settings. Storage-mode changes can make an existing Windows installation unbootable. Check the computer manufacturer’s installation instructions when Setup cannot see the target drive.

Use the Error Code and Setup Logs After a Rollback

The percentage tells you where progress appeared to stop, but it rarely identifies the component that failed. An error code or log entry is more useful.

After Setup returns to the desktop, check:

Settings > Windows Update > Update history

You can also look for these Setup log locations:

C:\$WINDOWS.~BT\Sources\Panther\setuperr.log
C:\$WINDOWS.~BT\Sources\Panther\setupact.log

The $WINDOWS.~BT folder is hidden. Enable View > Show > Hidden items in File Explorer before looking for it.

setuperr.log collects errors, but the final line is not always the root cause. setupact.log provides the surrounding sequence of actions. Search near the time of the failure and note any error code, driver filename, or application name that appears repeatedly.

Microsoft documents several other log locations for different Setup phases. Advanced troubleshooting should use the official Windows Setup log reference instead of guessing which file applies to an offline or rollback phase.

When a Clean Installation Is Justified

A clean installation should not be the automatic response to one stalled attempt. It becomes reasonable when:

• The PC meets Windows 11 requirements but repeated in-place upgrades fail after targeted repairs.
• Setup logs point to extensive corruption that cannot be repaired.
• The current installation is unstable for reasons beyond the upgrade.
• You already intended to erase the device and have a verified backup.

A clean installation removes applications and can erase personal files and partitions depending on the choices made. Back up important data, confirm that the backup opens correctly, and record any BitLocker recovery key before starting.

What Usually Fixes the 46% Freeze

For an upgrade launched from Windows, the most effective order is:

1. Wait long enough to rule out slow progress.
2. Cancel normally when Setup still responds.
3. Restart and disconnect unnecessary hardware.
4. Free storage and finish pending Windows updates.
5. Run the upgrade again with Not right now selected for Setup updates.
6. Repair Windows with DISM and SFC if it stalls again.
7. Investigate drivers, the returned error code, and Setup logs.
8. Use fresh official installation media.

This order deals with the common causes while keeping reinstalling Windows as a last resort. The key is to troubleshoot the stage that actually stopped rather than treating 46% as a diagnosis by itself.