Question

Hard disc space

Can anyone please help me with a problem that's driving me nuts.
I am running Windows 7 on a 1 TB hard drive.
The total size of files/programmes on the hard drive is 497GB. But, I only have 41.9 GB free???
I have run WinDirStat, & it shows an "unknown" space of 434 GB. This section is a yellow colour, & does not show any files. I cannot alter it or delete it, so how can I recover this 434 GB.
I have run cc cleaner, disk defrag etc. but no joy.
Please, please ,anyone any ideas?

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Comments
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Answer
There is a space for system restore

That can come up unknown. Try the usual and turn off system restore and back on. A new restore point is made and the space for all old points is reclaimed.

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Hard disc space

Thank you for your quick reply. However, I haven't got windows restore switched on. I use a programme
called Rollback RX, which allows me to reset back to a saved point.
I have anyway, also looked in the restore system, & it is not using any disc space.

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Hard disc space

Anyone know how I can add a screenprint of my WinDirStat results? It asks me for an image URL ,
what's that?

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Re: screenprint

Copy it to your favorite image sharing site (like imgur or dropbox) and use the link to it (that's the "image url" in the post.

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Hard disc space
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Answer
Re: unknown
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Answer
OK, you claim that and now it's time to tell me

Look in your System Volume Information folder. How much is in that folder?

Post was last edited on March 25, 2018 10:50 AM PDT

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Hard disc space
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So let's drill down a little.

What is in System Volume Information? It's a hidden folder so you have to do the usual to see it. Or just boot up Linux which won't hide it.

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Hard disc space

Sorry to everyone who’s trying to help me, but I have to go out now for an appointment, I’ll try & get the system volume information tomorrow & put in n the forum.
Many thanks
Dave

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Looks like RAW or Unallocated space

Seems the drive may have been divided in half and windows installed in one half and the other half left for future installations, like a dual OS such as Windows plus Linux, or two differing Windows versions.

What does Device Manager and Drive Manager show? I would also boot a LIVE DVD of Linux Mint and see if it's a different file system, like ext2, ext3, or ext4, or other.

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Answer
Folder

Looks like you have some big folder on the hdd.

Try this.
Start>control panel>folder options>view
Put a tick in 'show hidden files and folders'.
Perhaps that will allow explorer to ID this folder.

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Good idea

This one must be helpful

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Answer
Logical disk / Physical disk

Are you sure that your logical disk took all the space on physical disk? You can search Start -> Computer Management and check Disk Management
https://prnt.sc/iyl2ng
In there's 434 Gb Unallocated, then just create one more logical disk and/or merge this space with your disk C with EaseUS Partition Master Free or any other partition utility

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