Question

3TB Hard Drive showing half space

I have a 3TB internal HDD (Western Digital Caviar Green 3 TB SATA III 64 MB Cache Bare/OEM Desktop Hard Drive - WD30EZRX) that I had partitioned into two 1.5 TB partitions, E and F. I needed to merge the two partitions (E, F) back into one (E). I removed all files from the F partition and deleted the volume and then deleted the partition. I then attempted to extend E to reclaim the unallocated space freed up by deleting F, but I don't see the 1.5 TB of unallocated space in Disk Management. What am I doing wrong?

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Comments
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Clarification Request
What version Intel driver?
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Intel driver

I think i have version 9.6.0.1014. I've pasted details from Intel System Report. FYI, the HDD I'm having problems with is "Disk on Port 1". I downloaded and ran the Intel Driver Update Utility and it found no Intel drivers on my PC. The Utility recommended downloading generic drivers from HP and provided a link to the HP site. I went there and the Intel drivers are all old, version 9.1.1 or so. I'm afraid to download the latest Intel RST driver because it may be too new for my PC. Can you recommend a way for me to determine which driver to safely download?

System Report

System Information
OS name: Microsoft Windows 7 Home Premium
OS version: 6.1.7601 Service Pack 1 7601
System name: JEFF-HP
System manufacturer: Hewlett-Packard
System model: HPE-477c
Processor: GenuineIntel Intel64 Family 6 Model 37 Stepping 2 3.201 GHz
BIOS: American Megatrends Inc., 6.12

Intel® Rapid Storage Technology
Kit installed: 10.5.0.1026
User interface version: 10.5.0.1027
Language: English (United States)
Intel AHCI controller: Intel(R) 5 Series/3400 Series SATA AHCI Controller
Number of SATA ports: 6
Driver version: 9.6.0.1014
ISDI version: 10.5.0.1027

Device Information
Disk on port 0
Port location: Internal
Status: Normal
Type: Solid-state drive
Size: 233 GB
Serial number: S2R5NXAH211377Y
Model: Samsung SSD 850 EVO 250GB
Firmware: EMT02B6Q
System disk: Yes
Password protected: No
Disk data cache: Enabled
Native command queuing: Yes
SATA transfer rate: 3 Gb/s
Physical sector size: 512 Bytes
Logical sector size: 512 Bytes

Disk on port 1
Port location: Internal
Status: Normal
Type: Hard disk
Size: 2.7 TB
Serial number: WD-WMC4N0K3NUPJ
Model: WDC WD30EZRX-22D8PB0
Firmware: 80.00A80
System disk: No
Password protected: No
Disk data cache: Enabled
Native command queuing: Yes
SATA transfer rate: 3 Gb/s
Physical sector size: 4096 Bytes
Logical sector size: 512 Bytes

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Then back to WD I fear.

I've never encountered an issue with the Intel drivers or apps. But if you must run with old versions I worry that's it.

Back to WD to ask if they have a different fix.

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Answer
Get a second opinion

I keep a copy of partition wizard in a drawer for when windows disk management gets fussy.

You can also look into gparted.

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