I'm installing Windows 10 Pro Insider Preview (build 10166) on a new 256GB 850 Pro SSD. Using Rufis 2.2 I loaded build 10166 .iso to a 3.0 USB. I unplugged my C drive and plugged in the new SSD. The install started correctly and after entering the Product Key it asked where I wanted to install W10. It offered, "Drive 0 Unallocated, Capacity 238.5, available 238.5" I opted to fornat. Then I got: "Setup was unable to use existing partition because system volume does not contain the required space" I tried installing Windows 8 and got the same results. Got tip? Thanks, Kerry PS: I ran AS SSD Benckmark and CrystalDisk but I don't have enough posts to include the results. My PC: Road Runner 10 MB High Speed Windows 8.1 Pro X64 w/Media Player Trying (Windows 10 Pro Insider Preview Build 10166). MOBO: Asus P8P67 LE BIOS: 3801 Processor: i7-2600K quad 3.4GHz cores, 8MB Cache CPU Cooling: Intel Heatsink Fan Thermal Controlled Memory: 8 GB DDR3-1333 Dual Channel Power Supply: Ultra 600 3X ULT40073 PCX Video: nVidia GeForce GTS 450, PCI-Express 2.0, dual Monitor DVI, DVI, Mini-HDMI Monitors: 30” Dell and 19” ViewSonic Primary HDD: 120 GB SSD OCZ VTX3-25SAT3-120G R Secondary HDD: Hitachi 1 (T) 7200 RPM, 32MB Cache SATA 300 w/NCQ Optical Drive: 20x DVD+/-RW Dual Layer Burner w/LightScribe Labeling Media Reader: Integrated 8-in-1 Flash Memory Reader Network Adapter: 10/100/1000 MBps Gigabit Ethernet Adapter FireWire: 2 IEEE 1394 Ports Ports: 2 rear USB 3.0, 6 Rear USB 2.0, Audio Out/Mic-in, 2 Rear eSATA
Did you click New to create the primary partition first? If you did it correctly you should have two partitions on the drive. One that says system reserved and the other that says primary
Hi nhlkoho, Since posting I installed build 10240 iso (now named Windows 10 Pro) to a 3.0 USB using Rufus 2.2 and tried* to install it on my new Samsung 850 Pro 246 GB SSD (F) drive. The "New" option was not highlighted. After entering the Product Key > Next > I got the exact same message: "Setup was unable to use existing partition because system volume does not contain the required space" Disk Management: Disk 1 basic, (F reads: 238.47 GB NTFS, Healthy (Active, Primary Partition) but unlike Disk 2 (E a HDD drive, it has no Unallocated. I also tried installing Windows 8.0 on F: via the USB method but got the same message. * Before "trying" I copy-pasted a folder to F: and it worked—so apparently the drive is OK. I then formatted the F drive (so as to delete the folder) and tried installing W10. Thanks, Kerry
