Win7 and later Home versions does not allow Mirroring disks and why won't see this option. (Think XP and Vista Home and related did not allow Mirroring too.)
Mirroring needs Dynamic disks.
Any disk containing an active C: drive may not be able to convert to Dynamic from Basic w/in Windows. I have to check this later.
WinNTx had Software Raid forever and does work but you pay a penalty in slower disk access times. If you have slow disks now, will be worse often noticeable worse w/ software Raid.
Many MoBo have Raid 1 and 5 in hardware when AHCI is used and Not available "legacy" disk operation. You have to build the set before installing anything software.
Read the MoBo/system owners doc.
Even then Win Home versions may not support this either.
⚠️ Warning: A lot of HD and SSD made for Retail Customers (Like many Blue and Green label drives) Do Not have Firmware in them to support any Raid. Example: May seem to work until to try to restore a disk set.
Many 2+ TB drives have problems w/ Raid related to a lawsuit. WD and think Seagate are being sued over how data is stored on disk for some Red and other drives.
MS removes more and more local backup options even from Win7 Pro/Ult and WinX Pro.
Win7 was first to remove all tape backup including all Win Drivers to run the devices not just removing the option to backup in software.
Now MS wants you to back to "The Cloud" w/ monthly fees and little to no privacy protection.
If you add any packaged NAS from WD et al or even just external drive many have Backup software.
External USB3 drives run almost as fast as SATA drives and make fast backup can be taken offline to protect from malware. I have 2 2TB "laptop" size units for this reason.
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Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)
The Ogre's Fiero Cave