I have a "HP A6650F". It is running Vista and has a 500GM HD. I am only seeing about 365GB on the main and the recovery partition. I know that the system uses some of it. But 35GB?. Thanks in advanceWhich version of Vista are you running?

Windows Vista recommends you have at least 40GB total, with at least 15GB free. Vista does not actually takes up all 15GB (at least, not RIGHT away), but 'reserves' it for future program installations and/or updates/service packs.I am using Vista home premium. The HD is a 500GB and the "total" space is only saying 465GB. Thanks for the quick response
If you've used around 20GB then that is about right.

Do you know how much space you have used.What I am TALKING about is Total drive space, not used. I have a 500GB HD, in "computer management" it is showing the total as only 465GB total. I can not undersatnd where the other 35GB is?. I know taht some are taken by the system, but 35GB?. Check out the attachment if you don't mind

Thanks

[SAVING space - attachment deleted by admin]
First, let’s see how much storage space is currently allocated:

1. Click the start menu
2. Click on All Programs, and then Accessories
3. From the accessories menu, right click on Command Prompt and select “RUN as administrator”
4. Type “vssadmin list shadowstorage” into the command prompt
5. The results should tell you the amount of storage used and the maximum amount allotedThanks for all of the help. I have attached the numbers

[Saving space - attachment deleted by admin]HD manufacturers use Base 10 metric instead of Base 2.

your 500GB would be 500*1024*1024*1024 BYTES, or

536,870,912,000

but the actual size,because HD manufacturers use base 10, is

500,000,000,000

which the computer still divides up using it's base 2 logic. so your effectively missing 35GBs (36,870,912,000)Thanks for the response. If I am understanding you correcty, missing 35GB (not including used) of a 500GB is the norm?

Thanks againyes- HD manufacturers use the base-10 metric to describe the size of their products- but computers use their size using Base-2. It's almost always true that you'll find upon viewing the HD size your actual usable space is around 6% or 7% less because if this. It's not because any of the space is used by the OS- but rather because the space never existed.Ok, I guess there is nothing to woory about. I really appreciate the help

Chart Courtesy of Western Digital Corp.Great chart. I guess I am no longer confused. Thanks for all of the respones