What is AmUStor.sys?
AmUStor.sys is part of Alocr Micro USB Mass Storage Driver and developed by Alcor Micro, Corp. according to the AmUStor.sys version information.
AmUStor.sys's description is "Alocr Micro USB Mass Storage Driver"
AmUStor.sys is digitally signed by AlcorMicro, Corp..
AmUStor.sys is usually located in the 'c:\temp\usbvid_058f&pid_6366\program files\AmUStor\XPx64\' folder.
None of the anti-virus scanners at VirusTotal reports anything malicious about AmUStor.sys.
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 AmUStor.sys:
| Property | Value |
|---|---|
| Product name | Alocr Micro USB Mass Storage Driver |
| Company name | Alcor Micro, Corp. |
| File description | Alocr Micro USB Mass Storage Driver |
| Internal name | AmUStor.sys |
| Original filename | AmUStor.sys |
| Legal copyright | Copyright(C) Alcor Micro, Corp. |
| Product version | amd64 |
| File version | amd64 built by: WinDDK |
Here's a screenshot of the file properties when displayed by Windows Explorer:
| Product name | Alocr Micro USB Mass Storage Driver |
| Company name | Alcor Micro, Corp. |
| File description | Alocr Micro USB Mass Storage Driver |
| Internal name | AmUStor.sys |
| Original filename | AmUStor.sys |
| Legal copyright | Copyright(C) Alcor Micro, Corp. |
| Product version | amd64 |
| File version | amd64 built by: WinDDK |
Digital signatures [?]
AmUStor.sys has a valid digital signature.
| Property | Value |
|---|---|
| Signer name | AlcorMicro, Corp. |
| Certificate issuer name | VeriSign Class 3 Code Signing 2010 CA |
| Certificate serial number | 39912288ce4d452d114ce35bf07d57eb |
VirusTotal report
None of the 47 anti-virus programs at VirusTotal detected the AmUStor.sys file.
Hashes [?]
| Property | Value |
|---|---|
| MD5 | e5f36f2ff6e8bc2e9e51655489ea753d |
| SHA256 | 83a7ba29d411c039511a9306c0136099572ee8e306e1c87207f3e721568c0136 |
What will you do with AmUStor.sys?
To help other users, please let us know what you will do with AmUStor.sys:
What did other users do?
The poll result listed below shows what users chose to do with AmUStor.sys. 25% have voted for removal. Based on votes from 264 users.
NOTE: Please do not use this poll as the only source of input to determine what you will do with AmUStor.sys.
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.
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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.
My Windows 10 won't boot with "System Thread Exception Not Handled (amustor.sys)
# 20 Mar 2016, 9:43
Heather writes
My hard drive is full and I'm not the one loading things on it.. i think it's full of logs and apps that I do not want. How do I get rid of those?
# 24 Sep 2017, 6:40
Tom Ludwig writes