About this tag
The tag 'unknown space' on WindowsForum.com covers discussions about unexplained disk space usage on Windows systems, particularly on SSDs. Users report that tools like WinDirStat show a significant amount of space as 'unknown'—space that is not accounted for by visible files or standard system functions. Common troubleshooting steps include disabling System Restore, turning off the page file, running chkdsk, and using the Windows Update Troubleshooter. The focus is on recovering this missing space without deleting user files, often involving deeper system settings or disk management utilities.
  1. S

    unknown ssd/harddrive space

    How can I recover 15 GB of C: partition ssd space that WinDirStat shows as "unknown" and I cannot access? I know this "unknown" 15 GB is real because Windows File Explorer shows there is an unexplained shortage of disk space. Its 15 GB or perhaps more. I don't have a problem accounting for the...
    • skrambam
    • Thread
    • 128gb blank space c drive chkdsk command prompt disk space hard drive page file partition sfc shadow copy ssd storage system restore troubleshooting unknown space vssadmin windirstat windows windows update
    • Replies: 15
    • Forum: Windows Software