I want to dual-boot Manjaro to my Windows 10 system without losing any data.
I have a 250 GB SSD (Samsung 970 EVO) and a 1 TB HDD (WD Blue). Windows 10 is on SSD, and games, mobile ROM-s, etc. are on HDD. I followed this guide [HowTo] Dual-boot Manjaro - Windows 10 - Step by Step to install Manjaro.
But when I try to install it from USB (to HDD), I get stuck at manual partitioning. It just shows the whole disc as "unknown" (empty) although I shrank it in Windows.