I install a 1 tb hdd and it show up as a 931gb drive in windows 7 Tags: Drivers Windows 7 Hard Drives Last response: March 24, 2012 1:23 PM in Windows 7 Share SANMAN66 March 24, 2012 1:23:41 AM I install a 1TB HDD and is show up as a 931 gb DRIVE HOW TO FIX THIS PROBLEM More about : install hdd show 931gb drive windows Pinhedd a b \ Driver a b $ Windows 7 March 24, 2012 1:32:36 AM That's the actual size The hard drive manufacturer considers 1TB to be 10^12 bytes whereas most software considers it to be 2^40 bytes. The difference between the two is what causes it to appear smaller than advertised Ohmybad March 24, 2012 2:01:47 AM Pinhedd is correct, i have several 1TB drives and they come out 931GB because of the 10^12 vs the 2^40 Related resources New 1tb hdd only shows as 931gb ? - Forum Getting my HDD to show . Windows 7 already shows my SSD card. - Forum [Solved] WD Caviar Green 1tb HDD - Forum WD 1TB HDD won't show up on BIOS - Forum New build - 2nd HDD not seen by W 7 - Forum Can't find your answer ? Ask ! Get the answer eggbrook March 24, 2012 2:25:08 AM In slightly easier terms to understand an actual gigabyte is considered 1024 Megabytes. However manufacturers consider 1000 Megabytes to be one gigabyte. So you actually only get 931gigabytes. runswindows95 a b $ Windows 7 March 24, 2012 1:23:14 PM The easiest way to roughly figure out the size any OS will see a new hard drive is this: # of GB X 0.93. Also, as many has stated, the hard drive OEM's label 1,000GB at 1TB. Can't find your answer ? Ask ! Publish Related resources : ForumLost HDD capacity on new drive Forum37 25 GB unallocated on a 1TB external hard drive Forum3000GB drive coming up as 1.99TB ... why? Win 7 ULT. Forum3 TB Seagate Only formats out to 2 TB w/ 931 Unallocated and greyd out ForumHow to install a 1 TB new drive in a windows 7 64bit desktop for storage ForumWhy/How should I set up for Intels SRT? ForumAllocating the ~700 GB in Seagate barracuda 3 TB HDD in Windows 7 64bit Forum3 TB Drive is now showing up as a 1 TB Drive !!! Forum( HDD ) WD20EARS Formatting Issues ForumWin 7 vertex 3 ForumNew 3 tb HDD shows 746gb Forum[Solved] Product key for windows 7 professional 32 bit free ForumHow do you download legacy hardware i need to install network adapters Forum[Solved] Installed new SSD boot drive, want to repartition existing drive ForumHow do I configure novell client for windows 7? More resources Read discussions in other Windows 7 categories Configuration Customization Drivers Security Laptops !