Edited by Strype, 08 September 2014 - 02:26 AM.
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Posted 08 September 2014 - 02:01 AM
Edited by Strype, 08 September 2014 - 02:26 AM.
Posted 08 September 2014 - 06:16 AM
I would suggest you try running Scandisk as a slim possibility. In my opinion, it's a 'worst case' scenario, but when a hard drive starts getting bad sector errors, it tends to regard them as unknown, unusable sectors. I doubt it's the cause, but it's an avenue worth ruling out.
Running programs such as "sfc /scannow" at the command prompt, and "chkdsk" will help ensure the hard drive is clear of this.
I'm going to assume that the hard drive is not being overused as virtual memory, but can you confirm that you've run an anti-malware program or two, to ensure there's no virus or worm filling the hard drive with useless/hidden junk files? I've had this happen to me on several occasions over the years. The first time was caused by the Love Bug way back in the year 2000. I'd always recommend MalwareBytes anti-malware to check this.
Some systems have a separate partition for their restore points, and these are often hidden. Are you able to confirm that it's not a small restore partition that's full? Is it possible that the restore points have been removed, but the files have remained?
Please do keep me updated.
Posted 08 September 2014 - 01:39 PM
- How old is your harddisk, system ? Didi you buy & install a larger harddisk ? Perhaps the BIOS can't handle that much diskspace. Suggestion: Update the BIOS.
Posted 08 September 2014 - 04:49 PM
The Tree Size idea is a good one...you can see exactly where drive space is being utilized, by what.
Posted 08 September 2014 - 09:03 PM
But he/she already has used the program ..................
Posted 08 September 2014 - 09:25 PM
If it's file system corruption causing a problem with free space to be incorrectly reported, then running chkdsk should help. I have seen file system errors cause large amounts of free space to be incorrectly marked as in use, which were fixed by chkdsk. To do this open an elevated command prompt (type cmd.exe into the search box and right click on cmd.exe and choose "Run As Administrator).
Then type chkdsk /r C: into the command line
The scan will run on your next restart. Note that it can take a long time to complete. Repeat for any other drive letters which are on this drive.
FWIW I don't think the BIOS HDD size limitation is likely to apply in this case - the laptop seems to be from around 2011 and supplied with a large disk as standard.
Posted 08 September 2014 - 09:32 PM
Before running the checkdisk command, please make a complete backup of all data. What checkdisk repair could do sometimes stalls on some unreadable sectors or area during the repari process and in some point makes windows not bootable, worst case scenario. By saying this precaution is due to not seeing the health report of your hard drive.
Posted 09 September 2014 - 01:08 AM
Have you looked into or disabled volume shadow copy?
Posted 10 September 2014 - 04:12 AM
Thank you all for your suggestions!
I have most certainly ran several disk checks, from both the command prompt and upon reboot. It is not finding anything wrong with my hard-disk whatsoever. I have also ran several virus/malware scans, including deep scans from Avast, Windows Defender and Malwarebyte's AntiMalware. None of them are finding anything dirty. It is definitely not a simple matter of Temporary Files, Restore Points or Shadow Copies, as I would have figured this out on my own long ago.
I am normally very good at troubleshooting and solving PC problems on my own, and this is actually the first time I've ever had to resort to reaching out to a tech support forum due to being unable to solve the problem on my own. I can assure you guys that it's not a simple "lets help the newbie" type of fix. It's, unfortunately, something more complex, and I really appreciate you guys trying to help me out.
Below is a screenshot of what I see when running WinDirStat (as administrator). The massive Yellow block is the 644GB of "Unknown" space that my computer is completely unable to remove, delete or even identify.
This is also what I see when running TreeSize/Spacesniffer. Nothing seems to be able to identify it, and I certainly can't just "right click and delete it," as some have suggested. I'm honestly baffled as to what it could be. Any further help would be greatly appreciated. Thanks in advance!
Posted 10 September 2014 - 04:54 AM
Just a thought have you tried a Linux Live CD and mount the drive to see if that reveals anything
you seem to have tried every thing else
Posted 10 September 2014 - 05:18 AM
That's one thing I haven't tried, Hedge. As familiar as I am with Windows, I am not very familiar with Linux, unfortunately. Would you mind explaining how I would go about performing such an action? Or perhaps pointing me to a website that could? At this point, I would be willing to try anything!
Thanks bud, I appreciate it.
Posted 10 September 2014 - 05:35 AM
Yes give a couple of mins and i will try and find a reasonable link
(there are loads of people here who could do a better job But thay are all asleep,as should you looking at your local time)
But i will see what i can find.
Posted 10 September 2014 - 05:48 AM
To get you started this link
Win 7 will burn ISO's to CD/DVD or plenty others (image burn,infra recorder etc
more to follow on mounting volumes/drives
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