The overall effect of disk compression will be to make the discrepancy you think you have even bigger. When reconciling disk usage you need to make sure you have included the System Vulume Information folder and it's contents. Although you can see the folder in Windows Explorer the space occupied is not reported and it occupies a a lot of disk space. Treesize reports the figure.
With Windows XP it was relatively easy to detect one of these files because, if fragmented, they would be listed as a fragmented file in Disk Defragmenter. With Vista and Windows 7 the listing of fragmented files in Disk Defragmenter was dropped so you have to rely on third party tools like Treesize to reveal the existence of these files.
I do not have a comprehensive list of files that remain hidden in Windows Explorer but the most notable in terms of size relate to protected storage backup files to protect against the consequences of accidental file deletion. Norton started the practice with Protected Storage and Retrospect was another providing this type of software. Another unreported file is the MFT file Master File Table which is an index maintained by Windows so that it knows where each file is located on the disk.
However the MFT files is not so large so it does not create an obvious discrepancy but it is nevertheless part of the discrepancy. Was this reply helpful? Yes No. In the new pop-up window, scroll down to Disk Space Usage. Step 6. After that, click on Apply button for the system drive to save the current configuration and click on Delete button.
Step 7. Then you will receive a reminder saying this will delete all restore points including older system image backups. Just click on Continue.
It is known that Windows 10 sometimes may report inconsistencies related to your available free space. According to the report of several affected users, this issue can be resolved by running the System Maintenance Troubleshooter and restarting their Windows. If hard drive free space incorrect Windows 10 results from a Windows failure, this troubleshooter should identify the inconsistencies and fix the issue automatically. Here is full guidance you can follow:. Search for Troubleshooter in the top-right corner of the screen and double click it.
This will allow you to fix more issues that require admin access. In the pop-up window, start from clicking on Advanced to check Apply repairs automatically. Then click Next to move on the next section.
You need to wait until this utility finishes the analysis for the inconsistencies related to your available free space. If there is a fix recommended, click on Apply at the next prompt and wait until the repair strategy is performed. When this process is finished, restart your Windows and check whether this issue is resolved. As you know, the hard disk stores important data and once it gets corrupted, some data stored in it will be lost. However, the condition of the hard disk will deteriorate gradually and you may encounter this issue like the wrong hard disk free space.
To some extent, the errors of the hard disk can be detected and repaired by running CHKDSK scan or other professional software. In the main interface of Disk management, select a target hard drive that shows the wrong free space and right-clicks it to choose Properties.
In the new window, scroll down to Tools tab and click on Check to continue. If there are errors exactly in the hard drive, you will be asked to check the disk. Well, if no error is found, you will see a message to ask you whether you still scan the drive for error. If you want to, just click on the Scan drive. After waiting a little time, Windows will show you a message saying your drive was successfully scanned if there are no found errors. Then click on Close.
If there are some errors on the hard drive, you will be asked to restart your Windows to fix the errors. In addition, it is highly recommended that you choose powerful software MiniTool Partition Wizard. Thank you. This thread is locked. You can follow the question or vote as helpful, but you cannot reply to this thread. I have the same question Report abuse. Details required :.
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