What is sf.sys?
sf.sys is part of Sonic Focus DSP service driver and developed by Sonic Focus, Inc according to the sf.sys version information.
sf.sys's description is "DSP service driver"
sf.sys is digitally signed by Microsoft Windows Hardware Compatibility Publisher.
sf.sys is usually located in the 'C:\WINDOWS\system32\drivers\' folder.
None of the anti-virus scanners at VirusTotal reports anything malicious about sf.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 sf.sys:
| Property | Value |
|---|---|
| Product name | Sonic Focus DSP service driver |
| Company name | Sonic Focus, Inc |
| File description | DSP service driver |
| Internal name | sf.sys |
| Original filename | sf.sys |
| Comments | DSP Service driver for Intel(R) main boards |
| Legal copyright | Copyright (c) 2002,2003 Sonic Focus Inc |
| Product version | 5.02.0002.4 |
| File version | 5.02.0002.4 |
Here's a screenshot of the file properties when displayed by Windows Explorer:
| Product name | Sonic Focus DSP service driver |
| Company name | Sonic Focus, Inc |
| File description | DSP service driver |
| Internal name | sf.sys |
| Original filename | sf.sys |
| Comments | DSP Service driver for Intel(R) main.. |
| Legal copyright | Copyright (c) 2002,2003 Sonic Focus .. |
| Product version | 5.02.0002.4 |
| File version | 5.02.0002.4 |
Digital signatures [?]
sf.sys has a valid digital signature.
| Property | Value |
|---|---|
| Signer name | Microsoft Windows Hardware Compatibility Publisher |
| Certificate issuer name | Microsoft Windows Hardware Compatibility PCA |
| Certificate serial number | 61054a4f000000000006 |
VirusTotal report
None of the 41 anti-virus programs at VirusTotal detected the sf.sys file.
Folder name variants
sf.sys may also be located in other folders than C:\WINDOWS\system32\drivers\. The most common variants are listed below:
- C:\WINNT\system32\drivers\
Hashes [?]
| Property | Value |
|---|---|
| MD5 | e8cc4ba7b2e962bd932c7bf678e762e0 |
| SHA256 | c71ede0ded61b3358a880bff87fbb250236f5988fd2a2390891f02966f2a4b2c |
What will you do with sf.sys?
To help other users, please let us know what you will do with sf.sys:
What did other users do?
The poll result listed below shows what users chose to do with sf.sys. 17% have voted for removal. Based on votes from 12 users.
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 ;)
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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.
No comments posted yet.