What is o2sd.sys?
o2sd.sys is part of O2Micro SD Reader Driver and developed by O2Micro according to the o2sd.sys version information.
o2sd.sys's description is "O2Micro SD Reader Driver"
o2sd.sys is usually located in the 'C:\WINDOWS\system32\drivers\' 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 o2sd.sys:
| Property | Value |
|---|---|
| Product name | O2Micro SD Reader Driver |
| Company name | O2Micro |
| File description | O2Micro SD Reader Driver |
| Internal name | O2SD |
| Original filename | O2SD.sys |
| Comments | Support Oz128 |
| Legal copyright | Copyright ?2004~2006, O2Micro International. |
| Product version | 1, 0, 0, 0 |
| File version | 1, 0, 2, 1 |
Here's a screenshot of the file properties when displayed by Windows Explorer:
| Product name | O2Micro SD Reader Driver |
| Company name | O2Micro |
| File description | O2Micro SD Reader Driver |
| Internal name | O2SD |
| Original filename | O2SD.sys |
| Comments | Support Oz128 |
| Legal copyright | Copyright ?2004~2006, O2Micro Intern.. |
| Product version | 1, 0, 0, 0 |
| File version | 1, 0, 2, 1 |
Hashes [?]
| Property | Value |
|---|---|
| MD5 | 12a6d826a1a27818170552f2495a567a |
| SHA256 | c36db3f689310d1a324c5957378657ffc0f1e462092a649c0a8459aa60818cc2 |
What will you do with o2sd.sys?
To help other users, please let us know what you will do with o2sd.sys:
What did other users do?
The poll result listed below shows what users chose to do with o2sd.sys. 50% have voted for removal. Based on votes from 2 users.
NOTE: Please do not use this poll as the only source of input to determine what you will do with o2sd.sys. Only 2 users has voted so far so it does not offer a high degree of confidence.
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.
No comments posted yet.