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Disk 0 Unknown 3.86 GB Not Iinitialized

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I am not sure if this is an Acronis problem. However, it did occur after updating to Acronis 2014. All hard disks are initialized with GPT and not MBR. I have:
1. SSD drive for C recognized as disk 1 for Windows 8.1 operating system 64 bit.
2. SSD fpr Disk 2 for Music
3. SSD for Disk 3 for Pictures
4. HDD for Disk 4 for Videos
5. Seagate Backup Plus External HDD for my backups which I used Acronis for. (All drives

I only have 4 internal drives and 1 external drive. However, there is Disk 0 which I thought was my C drive and in the Properties Menu shows up as ST_M13FQBL. This shows as unallocated and I cannot initialize it because I get an input/output error.

I did a removal of Acronis thinking that this space may have been used by Acronis, but it still exists. I have ran WD software, Seagate software and Windows disk manager to try to trouble shoot, but there are no drives that show errors. The computer boots up normally albeit a longer boot time. BTW, DVD and a virtual drive show up as CD-ROM 0 and 1 with I and J respectively.

The boot setup shows the 5 physical drives. My question is, does this relate to my upgrade, does the software use this space on the C drive and designate it as a separate drive, or is there another issue? Should I do a low level format of my C drive and restore from my Acronis backup? Should I just live with the issue if there is nothing to worry about.

I am an amateur here and know just enough to get me in trouble, so if anyone can explain what is happening I would appreciate it very much. Thank you in advance for your attention and thoughts.

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A little research indecates this ST_M13FQBL is related to Seagate HDD's and is as follows:

You drive is identifying itself with a factory alias stored within the 8-pin serial flash memory IC on the PCB.

Is your HDD a seagate drive?

Sounds like you have a relatively new machine how old is the HDD? The procedure I found to correct this issue requires swapping out the internal PCB contained in the HDD along with some possible changing of diodes and such on the PCB which I am certain are beyond your capabilities. This situation seems to be linked to a possible over/undervoltage to the drive effecting the components on the PCB.

Are you using a premium grade power supply? With your configuration you should be. Only premium grade supplies are good enough to supply stable power within defined output voltage ranges to run the 5 volt side of a system. The more devices attached to the system the more strain is placed upon the power rails of a power supply. This is why top tier power supply manufacturers produce highend power supplies which is what you need in your system.

If your HDD is still under warranty you should try to RMA the drive however be prepared for RMA not to be honored if indeed a faulty power supply was to blame. Also highly recommend that you have your current power supply tested to see if any overvolatge/undervoltage spikes are occurring on the 5 volt rails. If your power supply is not a top tier unit I suggest you invest in one immediately to avoid future related issues.