072-0500 Alphasense User Manual
OPC-R1 Optical Particle Counter Issue 1
Alphasense Ltd Page 25 of 33 February 2019
Sensor Technology House, 300 Avenue West, Skyline 120, Great Notley. Essex.CM77 7AA. UK
Tel: +44 (0) 1376 556700 - Fax: +44 (0) 1376 335899
Email: sensors@alphasense.com - Web: www.alphasense.com
Since we are modifying boot time
configuration settings, you will need
to restart your Computer one last
time.
Finally, you will be given a list of
startup settings that you can
change. The one we are looking for
is “Disable driver signature
enforcement”. To choose the
setting, you will need to press the
F7 key.
Your PC will then reboot and you
will be able to install unsigned
drivers without any error message.
You should then be able to install
the driver for the SPI connector in
the standard manner.
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