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Windows 7: Windows 7 ultimate occupying 100+ GB??

02 Dec 2017   #11
FreeBooter

Windows 10 Pro x64
 
 

Low level formatting overwrites data with zeroes, i.e. performs so called zero-filling of a storage device. It should be noted that after such zeroing, neither a data recovery software nor a data recovery service can recover data off the device.


My System SpecsSystem Spec
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02 Dec 2017   #12
larryccf

windows 7 ultimate 64bit
 
 

thanks for the explanation

it may just be EaseUS Partition Manager screwed up somehow - it actually rebooted and did the wipes in Linux and then rebooted back into windows when finished. I'll swap to doing the wipes in Disk Management from now on

and tks again for that WinDirStat program - i'd forgotten all about it, i had it in my "Computer Tools" folder - I took a scan of the new OS and then booted up in my backup copy of home premium and took a scan of it, to compare - wow, pagefile.sys and hiberfil.sys were using 57 GBs in Ultimate compared to 2 GB in home premium. Made a big difference
My System SpecsSystem Spec
02 Dec 2017   #13
FreeBooter

Windows 10 Pro x64
 
 

Looks like EaseUS Partition Manager did not perform a Low level formatting if it did all data on the hard disk drive will be permanently deleted.

From Disk Management you can opt-out of quick format but long format does not delete data on the hard disk drive it will check and mark bad sectors it will not do Low level formatting. To do a Low level formatting you can use Diskpart command utility when you do a Low level formatting using Diskpart command you can instruct Diskpart to write one pass zeros this will permanently delete all data stored on hard disk drive.

Boot your computer to Windows installation DVD and from on the disk selection screen, press SHIFT+F10.
A Command Prompt window opens. Type diskpart, and then press ENTER to open the diskpart tool.
Type list disk, and then press ENTER. A list of available hard disks is displayed.
Type select disk number, and then press ENTER. number is the number of the hard disk that you want to perform Low level format. The hard disk is now selected.
Make sure that the disk does not contain required data, type clean all, and then press ENTER to clean the disk. All the partitions and all the data on the disk is permanently removed.
Close the Command Prompt window.
Click the Refresh button to update the disk selection screen.
My System SpecsSystem Spec
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02 Dec 2017   #14
larryccf

windows 7 ultimate 64bit
 
 

thanks - i've copied / pasted that into a note with easeus partition, mainly so i remember to use those instructions vs easeus

but i'm glad i discovered this now
My System SpecsSystem Spec
02 Dec 2017   #15
FreeBooter

Windows 10 Pro x64
 
 

You are very welcome!
My System SpecsSystem Spec
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 Windows 7 ultimate occupying 100+ GB??




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