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Discussion Starter · #1 ·
I just bought this laptop: http://h10025.www1.hp.com/ewfrf/wc/d...roduct=3860190

and it's supposed to have 320 GB HD but It only shows 298.1 GB. I'm already having trouble installing Windows 7 I keep getting the Missing BOOTMGR message but know I'm using KILLDISK and it only shows 298.1 GB. It is a refurbished laptop so maybe that's why. It came with Vista but when I tried to format and instal W7 I keep getting BSOD and BOOTMGR message. If anyone can help it will be greatly appreciated
 

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That is normal. It is the difference in the way megabytes are counted by the hdd manufacturer's and the way os's count them.
 

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Perfectly normal. The advertised space is always higher than the actual usable space.
My 500GB shows up as 465GB.
My 640GB shows up as 596GB.
 

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Discussion Starter · #4 ·
thanks guys good to know, Any ideas why I keep getting the missing BOOTMGR file when installing W7 ?
 

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It is not just in the way MB are counted. It is in the way every prefix is counted.

In base 10 they use 1,000. Example 1,000bytes is a Kilobyte, 1,000Kilobytes is a Megabytes, 1,000Megabytes is a Gigbyte?

Bianary counts 1,024 bytes as a Kilobyte, 1024KB is a MB, 1,024MB is a GB?

Using spaceballs 500GB which is base 10 reports 465GB base 2. Remember they both are the same number of bytes.

5000000000bytes/1024=48828KB's/1024=4768MB's/1024=4.6566GB's

Same formula /10=500GB's.

Other problem sorry can't help.
 

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as others have already said has to do with the difference between a gigabit and gigabyte. Rule of thumb is take the advertised space and multiply by .93
 

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My terabyte shows up as 931gb, completely normal
 
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