What is nllBoot.exe?
nllBoot.exe is part of Norton 360 and developed by Gen Digital Inc. according to the nllBoot.exe version information.
nllBoot.exe's description is "Norton Antivirus start-up scanner"
nllBoot.exe is digitally signed by NortonLifeLock Inc..
nllBoot.exe is usually located in the 'C:\WINDOWS\system32\' folder.
If you have additional information about the file, please share it with the FreeFixer users by posting a comment at the bottom of this page.
Vendor and version information [?]
The following is the available information on nllBoot.exe:
| Property | Value |
|---|---|
| Product name | Norton 360 |
| Company name | Gen Digital Inc. |
| File description | Norton Antivirus start-up scanner |
| Internal name | aswBoot |
| Original filename | aswBoot.exe |
| Legal copyright | Copyright © 2025 Gen Digital Inc. All rights reserved. |
| Product version | 25.4.10068.0 |
| File version | 25.4.10068.0 |
Here's a screenshot of the file properties when displayed by Windows Explorer:
| Product name | Norton 360 |
| Company name | Gen Digital Inc. |
| File description | Norton Antivirus start-up scanner |
| Internal name | aswBoot |
| Original filename | aswBoot.exe |
| Legal copyright | Copyright © 2025 Gen Digital Inc. A.. |
| Product version | 25.4.10068.0 |
| File version | 25.4.10068.0 |
Digital signatures [?]
nllBoot.exe has a valid digital signature.
| Property | Value |
|---|---|
| Signer name | NortonLifeLock Inc. |
| Certificate issuer name | DigiCert Trusted G4 Code Signing RSA4096 SHA256 2021 CA1 |
| Certificate serial number | 0e2a458afc78a2ea6d048ae192fe94c6 |
VirusTotal report
The file has been queued for scanning by the anti-virus programs at VirusTotal. The results will be available here in approximately 10 minutes. Thank you for your patience.
Hashes [?]
| Property | Value |
|---|---|
| MD5 | 7c425309e36c9d98c6f8626763664f1a |
| SHA256 | 15ae56ffd9639891891ebf86bc068fcc02b66fc78565db46d626a0aeba94599d |
Error Messages
These are some of the error messages that can appear related to nllboot.exe:
nllboot.exe has encountered a problem and needs to close. We are sorry for the inconvenience.
nllboot.exe - Application Error. The instruction at "0xXXXXXXXX" referenced memory at "0xXXXXXXXX". The memory could not be "read/written". Click on OK to terminate the program.
Norton Antivirus start-up scanner has stopped working.
End Program - nllboot.exe. This program is not responding.
nllboot.exe is not a valid Win32 application.
nllboot.exe - Application Error. The application failed to initialize properly (0xXXXXXXXX). Click OK to terminate the application.
What will you do with nllBoot.exe?
To help other users, please let us know what you will do with nllBoot.exe:
Malware or legitimate?
If you feel that you need more information to determine if your should keep this file or remove it, please read this guide.
And now some shameless self promotion ;)
Hi, my name is Roger Karlsson. I've been running this website since 2006. I want to let you know about the FreeFixer program. FreeFixer is a freeware tool that analyzes your system and let you manually identify unwanted programs. Once you've identified some malware files, FreeFixer is pretty good at removing them. You can download FreeFixer here. It runs on Windows 2000/XP/2003/2008/2016/2019/Vista/7/8/8.1/10. Supports both 32- and 64-bit Windows.
If you have questions, feedback on FreeFixer or the freefixer.com website, need help analyzing FreeFixer's scan result or just want to say hello, please contact me. You can find my email address at the contact page.
Comments
Please share with the other users what you think about this file. What does this file do? Is it legitimate or something that your computer is better without? Do you know how it was installed on your system? Did you install it yourself or did it come bundled with some other software? Is it running smoothly or do you get some error message? Any information that will help to document this file is welcome. Thank you for your contributions.
I'm reading all new comments so don't hesitate to post a question about the file. If I don't have the answer perhaps another user can help you.
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