bootmenuux.dll - Analyze and How to Fix Errors

★★★★☆ Verified File (27.08.2026)

⚠️ Important Notice: Discover solutions for bootmenuux.dll errors and improve Windows startup performance. Manually replacing system libraries can brick future Windows updates or cause critical system failures.

Architecture:	other	️ Not detected
Antivirus scan	✅ Clean	No viruses detected.
Digital signature	🟡 Not signed	Signature missing. The file may have been modified.
Hash Integrity	ℹ️ Unverified	File Hash protection is missing.
File size	12.7 kb.	13011 bytes.

Hashes:

MD5: 704dba1f4e90e1e4d988ceee88e4a811
SHA-1: bdf122af19f04373cd1c2a2079b3714ba87adfb3
SHA-256: 8908d263b46f6ccce9b68ee10a047f9d096d6dd2d24b173a83a74bf8b8bfc350
SHA-512: 441e40b7ec91aacf4b4219c106be9eb94405e49b20577a4644d44ac2d69ce938b1c8599b2e4487b634acf69e8016726ace127331976331a3a8bdf290a0fbf417

To fix a missing or corrupted bootmenuux.dll error without downloading any third-party files, you must restore the file using built-in Windows repair tools. This error usually disrupts the Windows Boot Manager screen.

1. Run SFC and DISM Repairs

Windows has built-in tools to find and replace corrupted system files automatically.

Press Windows Key + X and select Command Prompt (Admin) or Terminal (Admin).
Type sfc /scannow and press Enter.
Wait for the scan to finish and restart your computer.
If the error persists, open the Admin Command Prompt again.
Type DISM /Online /Cleanup-Image /RestoreHealth and press Enter.
Restart your PC after completion.

2. Perform a Startup Repair

If the error prevents Windows from booting normally, use the Windows Recovery Environment.

Hold the Shift key while clicking Restart in the Start Menu.
Go to Troubleshoot > Advanced options > Startup Repair.
Select your account and let Windows diagnose and fix the boot files.

3. Rebuild the Boot Configuration Data (BCD)

A corrupted boot menu configuration often causes this specific DLL error.

Boot your PC into the Windows Recovery Environment (as shown in Step 2).
Go to Troubleshoot > Advanced options > Command Prompt.
Type the following commands one by one, pressing Enter after each:
- bootrec /fixmbr
- bootrec /fixboot
- bootrec /scanos
- bootrec /rebuildbcd
Close the Command Prompt and restart your PC.

4. Install Pending Windows Updates

Microsoft frequently releases patches for system file bugs.

Press Windows Key + I to open Settings.
Click on Windows Update (or Update & Security).
Click Check for updates and install all available packages.
Restart your system.

📊 Diagnostics Tool: Verify Your `bootmenuux.dll` File

Worried that the file on your PC has been modified by malware? Drop it into the form below. Our script will verify its file size, cryptographic hash (MD5/SHA-1), and check for a valid Microsoft digital signature.

Other versions:
️ bootmenuux.dll 10.0.19041.5794 64-bit (x64) | ️ bootmenuux.dll 10.0.19041.6456 32-bit (x86)