If you purchased the microscope several years ago, it likely came with a mini CD-ROM. While many modern computers lack optical drives, this disc contains the most stable version of the software for older operating systems (Windows 7/8).
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If you answer "yes" to all of the above, your Sunshine DM-1000S will transform from a simple digital magnifier into a professional inspection and metrology system.
Some security software flags microscope drivers as "unrecognized." You may need to temporarily disable your firewall during installation. USB Microscope Driver Downloads - Jiusion.com