Upgrade OS on system with mirrored HDD

By tjharring ·
My company has a workstation server running Windows 7 Pro, MB Gigabyte H130M, 16GB ram, Raid 1 mirror set in BIOS.
I was trying to install a new version of Quickbooks Enterprise edition, but it would not install on Windows 7. So obviously I have to upgrade the OS to Windows 10 before I can upgrade Quickbooks.
Do I have to do anything special to perform an in place upgrade to Windows 10?
I would assume that since the HDD mirroring is set in BIOS that I should be ok, but I know that Windows 10 does interact differently with system BIOS.
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The most important step. Backup. Then another backup.

by rproffitt Moderator In reply to Upgrade OS on system with ...

Since it's a mirror via the BIOS (rare but I'll take your word here) you should after a few full backups be able to upgrade except in rare machines.

I've completed countless Windows 7, 8 to 10 upgrades and about 1 in 100 are troublesome. Mostly because of deep OS damage or bad drives.

As to the W10 BIOS interaction, I haven't found this to be an issue over hundreds of upgrades outside of very old 32 bit CPUs. Such as the old 32 bit Centrino's or older.

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Backup was not even in question

by tjharring In reply to The most important step. ...

I have every intention of backing up the system first. My concern was that upgrading to W10 would break the mirror of the HDD. I spoke with the person that setup the machine and he confirmed that he initiated the RAID in bios. I am going to go into BIOS tomorrow and verify.
I felt confident that with an in place upgrade that it should be okay, but never hurts to get other opinions. Thanks for the response

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by rproffitt Moderator In reply to Backup was not even in qu ...

I take you at your word about the mirror.

Now my opinion. I've found such mirrors to be flawed in many ways.
1. The mirror tends to make the owner(s) complacent about backups.
2. Some mirrors don't mirror "correctly." That is, when we remove the primary drive, put the secondary drive into the boot position, the machine fails to boot. What good was this?
3. Mirrored drives mirror good and bad data. It does not save the owner from mistakes (deletions) or malware. I've seen only one "save" in decades so my view is that mirrored drives are not a real solution to well, what problems?

After the backup, I would have no problem with moving to the next step (upgrade) and then never worry if the mirror would continue to function.

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