the used hard disk space is incorrect.

windows and treesize pro show 217gb used, but all files and folders are 125gb only.
i aleady checked windows sys restore files and other known hidden files. i found only 15gb there.
bios is updated.
the system was copied to this hdd using acronis true image software.
vozvozAsked:
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mgonulluCommented:
Try the steps described on this blog:
http://blogs.msdn.com/ntdebugging/archive/2008/07/03/ntfs-misreports-free-space.aspx

if it will not work try any Anti rootkit software
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mgonulluCommented:
can you please post the Disk Management screen shot
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vozvozAuthor Commented:
disk management screen
neu-1.jpg
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vozvozAuthor Commented:
treesize pro also shows 128gb used, but at the same time states only 2% free disk space.
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thecomputerdocsCommented:
go to a command prompt and type chkdsk /f
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vozvozAuthor Commented:
Welcome to the world of IBM/Lenovo pre-installed apps.
Rescue and Recovery application indicated: no backups to delete on all user profiles, although a rootkit scanner found RnR associated data on the HDD that was not visible to Windows API.
The RnR uninstall freed the humble sum of almost 90GB.
"Its not a virus, its an application"
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vozvozAuthor Commented:
Thanks mgonullu,  
scanning for possible rootkits made the deal.
Greeting to the Lebanon

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