Rufus defaults to creating a Windows PE volume, which is what Windows setup is, that supports both MBR and UEFI with backwards compatibility. A great piece of freeware called “ Rufus” is what I use to make the boot-able USB key from the Windows ISO file.
#DELL OPTIPLEX 3020 BIOS KEY INSTALL#
I use an 8GB USB key drive to install Windows from an ISO file. The problem wasn’t the drive, which was set up correctly, it was the install media.
#DELL OPTIPLEX 3020 BIOS KEY WINDOWS 10#
Windows 10 setup would indicate that setup could not use any available partition as they were in GPT format. Still, Windows setup would not use the drive. I initially tried to get the 3TB HDD to be recognized by booting to a Windows PE boot drive and use DISKPART to partition and format the HDD as a GPT disk. Newer computers have the ability to use UEFI with support for legacy BIOS system (UEFI-CSM), but not the 990. Each are mutually exclusive to the OptiPlex 990. They rely on a newer system called the Universal Extensible Firmware Interface, or “UEFI.” The OptiPlex 990 has the ability to use a BIOS-based system or UEFI, but not both. Under BIOS/MBR, Windows setup would only see 2TB, leaving around 768GB unavailable. I should have just done my homework and just ordered a 2TB drive. There, the largest of drives can be partitioned and formatted as one single volume, which is what I was after. To use the new crop of large drives with more than 2TB of space, one needs to format the drive as a GUID Partition Table or GPT device. BIOS-based computers use hard drives that are partitioned in the Master Boot Record or “MBR” format.
What I had found out that the default traditional method of BIOS hardware management on the PC only allowed it to see partitions or drives no larger than 2TB. I ordered a 3TB drive for my Dell OptiPlex 990 and had hoped to just plug and chug, but it didn’t work out that way. Using a virtualization program and creating a couple of production sized virtual machines will take up a great deal of that space very quickly.Ī larger hard drive is one of the easiest upgrades one can make to a computer. My desktop PC came with a 500GB hard drive. I do a great deal of work with virtual machines and perform all of my operating system development on virtual platforms.
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