Quartus 11 sp2 drivers not recognised by Windows 10

Here is the release note for Quartus 11.1sp2. As indicated, Windows 10 is NOT a supported operating system for this release. Windows 7 is. So either downgrade your OS back to Windows 7 (not probably likely at this point, unless you have full disk image backups) or upgrade your Quartus to the latest version 16.0 which is the first one that is officially supported on Windows 10 64bit according to Altera.

Of course, if you need older device support (like Cyclone II) then you must use Quartus 13.0sp1 or earlier, as it was the last version to support Cyclone II. This also restricts you to Windows 7 64bit (or Windows Vista/XP; but not Windows 8/10).

Refer to: https://www.altera.com/support/support-resources/download/os-support.html Table 2 readme files.

In my case I will be running Windows 7 64bit on my design machine until at least 2020 (when Windows 7 goes off official support) and likely even longer (ie, hell freezes over).

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Altera Complete Design Suite Release 11.1 SP2 README.TXT

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This readme.txt file accompanies the Altera Complete Design Suite version 11.1 SP2.

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System Requirements

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Operating system support

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* Windows 7 (64 and 32 bit)

* Windows XP SP2 (64 and 32 bit)

* Windows XP Pro X64 Edition

* Windows Vista (64 and 32 bit)

* Red Hat Enterprise Linux 4.0/5.0 for 32-bit and for AMD64

or Intel EMT64 64-bit CPUs

* SUSE Enterprise Linux 11 for 32-bit and for AMD64

or Intel EMT64 64-bit CPUs

* CentOS 4/5 for 32-bit and for AMD64

or Intel EMT64 64-bit CPUs

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