I'm replacing my HDDs with SSDs. On the first drive I tried to swap out, I tried using Macrium Reflect to clone the 2TB HDD (WD Black) to a Samsung 850 EVO SSD and found out (the hard way) that cloning an MBR drive to a GPT drive will convert the GPT to MBR, which meant half of my new SSD was inaccessible. After converting the SSD back to GPT and reformatting it (quick format), I used FreeFileSync to copy my data on the 2TB HDD to the SSD. However, when I removed the HDD and replaced it with the SSD, then changed the drive letter on the SSD back to the drive letter of the original HDD, after a few minutes, the drive would disappear from Computer and Management. When I rebooted, chkdsk would run, supposedly fixing any problems, then after Win 7 had been running for a few minutes, either the drive would disappear again or Windows Explorer would stop running and the computer would freeze up. This happened several times until I got ticked off enough to swap the original HDD back into the computer. After booting up again and changing the now changed drive letter on the HDD back to original drive letter, everything seems to be working just fine.
What the big fat hairy heck went wrong? Is the problem related to the switch from MBR to GPT? Was a folder/file syncing (FreeFileSync) the wrong program to use? Did I mess up the SDD beyond repair? I've got a small fortune invested in this change-out and I can't get past the first drive.
What the big fat hairy heck went wrong? Is the problem related to the switch from MBR to GPT? Was a folder/file syncing (FreeFileSync) the wrong program to use? Did I mess up the SDD beyond repair? I've got a small fortune invested in this change-out and I can't get past the first drive.

My Computer
- Computer type
- PC/Desktop
- Computer Manufacturer/Model Number
- Custom Build
- OS
- Win 7 Ultimate 64 bit
- CPU
- Intel i7-3930K
- Motherboard
- ASUS P9X79 WS
- Memory
- Kingston HyperX Genesis 32GB Kit (8x4GB Modules) 1600MHz DDR
- Graphics Card(s)
- MSI R7850 Twin Frozr 2GD5/OC Radeon HD 7850 2GB 256-bit GDDR
- Sound Card
- Asus Xonar Essence STX
- Monitor(s) Displays
- 3x Asus VG248QE 24", Vizio 32" TV
- Screen Resolution
- 1920 x 1080, ?
- Hard Drives
- Samsung 128GB 840 Pro SSD (1),
Samsung 4TB 850 EVO SSDs (4)
Samsung 4TB 850 EVO SSDs (16) external backup drives used in 2.5" hot swap bays in the computer.
- PSU
- Corsair HX750w
- Case
- Antec Two Hundred v2 (modified)
- Cooling
- Cooler Master GeminII S524 120mm (fan replaced with a 140mm)
- Keyboard
- Logitech G510s
- Mouse
- Logitech M525 (two in use)
- Internet Speed
- =< 32Mbps down, 8Mbps up
- Antivirus
- AVAST!, MBAM, SAS, Spybot S&D (all but MBAM free) Glary Util
- Browser
- IE11
- Other Info
- LSI 9211-8i HBA card (8 SATA III ports), 2.5" & 3.5" Hot Swap Bays, HooToo HT-CR001 PCI-E to USB 3.0 Internal Hub + 6 Slot Card Reader, and LG Model CH12LS28 BD-ROM Optical Drive. Also, ScanSnap S1500 ADF duplexing scanner, Canon 9000F flat bed scanner, Corsair SP2500 2.1 speakers, Samsung CLP 415nw laser color printer, Cyberpower PP2200SW UPS
