Should I block it?

No, this file is 100% safe to run.

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NVSVC64.dll

NVIDIA Driver Helper Service, Version 335.23 by NVIDIA Corporation (Signed)

Remove NVSVC64.dll
Version:   8.17.13.3523
MD5:   cf83b6b8bd9cb08902c9ccba4fb21992
SHA1:   9669519c88bb50b487d2e103432c68fff7047d8a

Overview

nvsvc64.dll is loaded as dynamic link library that runs in the context of a process. The file is digitally signed by NVIDIA Corporation which was issued by the VeriSign certificate authority (CA).

DetailsDetails

File name:nvsvc64.dll
Publisher:NVIDIA Corporation
Product name:NVIDIA Driver Helper Service, Version 335.23
Typical file path:C:\Windows\System32\nvsvc64.dll
File version:8.17.13.3523
Size:3.34 MB (3,497,816 bytes)
Build date:3/4/2014 5:48 AM
Certificate
Issued to:NVIDIA Corporation
Authority (CA):VeriSign
Effective date:Thursday, September 1, 2011
Expiration date:Monday, September 1, 2014
Digital DNA
File packed:No
.NET CLR:No
More details

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Ultimate 50.00%
Windows 8 Pro 25.00%
Windows 8.1 25.00%

Distribution by countryDistribution by country

Canada installs about 50.00% of NVIDIA Driver Helper Service, Version 335.23.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Hewlett-Packard 40.00%
ASUS 40.00%
GIGABYTE 20.00%
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