How to Initialize SSD/HDD to Fix Not Initialized Error (FREE) - EaseUSįrom the menu select Initialize Disk. Right-click on the Disk that needs to be initialized. In the "Initialize Disk" window, please select either MBR or GPT as the disk. Please right-click on the "Uninitialized" disk and select "Initialize Disk".Ĥ. Turn off your computer and disconnect the Samsung SSD. Situation 2: Disk unknown, not initialized, no size If you are performing a clean installation of your operating system, or cloning to. Before you can use your new SSD you have to initialize and partition it. Generally, if your disk shows not initialized, the issue is probably caused by MBR corruption or physical damage. › en-us › windows › forum › all › ssd-not-initialize. There could be several reasons due to which 'Disk Unknown Not Initialized' error message may occur, which are mentioned as following: Corrupt/ Incompatible/Outdated Driver, MBR Corruption, Missing or lost partition, Bad Sectors in hard drive, Corrupt File System etc.