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<li class="toctree-l3"><a class="reference internal" href="example_duplicatesearch.html">How does the duplicate search work?</a></li>
<li class="toctree-l3"><a class="reference internal" href="deduplication.html">How does the deduplication work?</a></li>
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<li class="toctree-l3"><a class="reference internal" href="searchfilter_definition.html">How do I define search filters?</a></li>
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<section id="general-scan-options">
<h1>General scan options<a class="headerlink" href="#general-scan-options" title="Link to this heading">¶</a></h1>
<p>General settings influencing the scan behaviour of TreeSize.</p>
<a class="reference internal image-reference" href="_images/TreeSize-MainWindow_Options_General.png"><img alt="_images/TreeSize-MainWindow_Options_General.png" class="align-center" src="_images/TreeSize-MainWindow_Options_General.png" style="width: 100%;" />
</a>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>Changes applied here usually require a rescan of the currently scanned drives and folders to take effect.</p>
</div>
<section id="scan-accuracy">
<h2>Scan Accuracy<a class="headerlink" href="#scan-accuracy" title="Link to this heading">¶</a></h2>
<section id="track-ntfs-hardlinks-and-alternate-data-streams-when-calculating-allocated-space">
<h3>Track NTFS hardlinks and alternate data streams, when calculating allocated space.<a class="headerlink" href="#track-ntfs-hardlinks-and-alternate-data-streams-when-calculating-allocated-space" title="Link to this heading">¶</a></h3>
<p>With this option you can control whether TreeSize should check each file if it is just a hardlink to another file, or if contains alternate data streams (ADS). This will result in more accurate results for the allocated space, but will also slow down the speed of a scan.</p>
</section>
<section id="follow-mount-points-and-external-symbolic-links-to-directories">
<h3>Follow mount points and external symbolic links to directories<a class="headerlink" href="#follow-mount-points-and-external-symbolic-links-to-directories" title="Link to this heading">¶</a></h3>
<p>You can decide if TreeSize should follow symbolic links and mount points (see Notes on NTFS for additional information) that point to other drives or folders on other drives. Links that point within the scanned directory will never be followed in order to prevent circular references and folders from being counted twice.</p>
</section>
<section id="consider-sharepoint-file-versions-when-calculating-allocated-space">
<h3>Consider SharePoint file versions, when calculating allocated space<a class="headerlink" href="#consider-sharepoint-file-versions-when-calculating-allocated-space" title="Link to this heading">¶</a></h3>
<p>This option will check for each file that is located on a sharepoint server, if one or multiple previous versions of this file exist. These previous versions use up additional space on the sharepoint server, which by default is not visible. If you enable this option, TreeSize will add up the size values of the previous versions of a file and include it into the “allocated space” value.</p>
</section>
</section>
<section id="statistics">
<h2>Statistics<a class="headerlink" href="#statistics" title="Link to this heading">¶</a></h2>
<section id="create-statistics-for-age-of-files">
<h3>Create statistics for age of files<a class="headerlink" href="#create-statistics-for-age-of-files" title="Link to this heading">¶</a></h3>
<p>If this checkbox is activated, TreeSize will generate statistics for the age of files in each sub tree. The results can be viewed on the Age of Files view of the main window. The creation of these statistics will increase the memory consumption of the application.</p>
</section>
<section id="create-statistics-on-file-extensions">
<h3>Create statistics on file extensions<a class="headerlink" href="#create-statistics-on-file-extensions" title="Link to this heading">¶</a></h3>
<p>If this check box is activated, TreeSize will generate statistics for the file extensions in each sub tree. The results can be viewed on the Extensions view of the main window. The creation of these statistics will increase the memory consumption of the application.</p>
</section>
<section id="create-statistics-on-file-owners">
<h3>Create statistics on file owners<a class="headerlink" href="#create-statistics-on-file-owners" title="Link to this heading">¶</a></h3>
<p>If this check box is activated, TreeSize will generate statistics for the file owners in each sub tree. The results can be viewed on the Users view of the main window. Since it is necessary to query the owner of each file, this option will slow down the scanning process if activated.</p>
</section>
</section>
<section id="notifications">
<h2>Notifications<a class="headerlink" href="#notifications" title="Link to this heading">¶</a></h2>
<section id="show-error-messages-during-scan">
<h3>Show error messages during scan<a class="headerlink" href="#show-error-messages-during-scan" title="Link to this heading">¶</a></h3>
<p>Use this option to decide whether TreeSize should show error messages during scanning. If you, for example, scan a network drive on a Windows server and don’t have reading access to all folders, Windows will pop up an error message for every unreadable folder. If you don’t want the scanning process interrupted by these message boxes, uncheck this check box.</p>
</section>
<section id="notify-when-the-scan-is-finished">
<h3>Notify when the scan is finished<a class="headerlink" href="#notify-when-the-scan-is-finished" title="Link to this heading">¶</a></h3>
<p>Shows a message in the Windows system tray, once a longer running scan is finished.</p>
</section>
</section>
<section id="thread-options-expert-option">
<h2>Thread Options (expert option)<a class="headerlink" href="#thread-options-expert-option" title="Link to this heading">¶</a></h2>
<section id="thread-priority">
<h3>Thread Priority<a class="headerlink" href="#thread-priority" title="Link to this heading">¶</a></h3>
<p>Enables you to define the priority with which the threads scanning the hard disk are running. “Idle” means that the CPU will be used only if no other threads are using it. “Idle” is a good setting if you want to make sure that a scan with TreeSize has no impact on the performance of the PC or server. The default and recommended value is “lower priority”. Choosing a higher priority will result in the scan threads having a higher priority than the thread of the user interface, which can make the user interface unresponsive during a scan. This setting is also used for the threads of the TreeSize File Search.</p>
</section>
<section id="maximum-number-of-threads-per-scan">
<h3>Maximum number of threads per scan<a class="headerlink" href="#maximum-number-of-threads-per-scan" title="Link to this heading">¶</a></h3>
<p>TreeSize automatically adjusts the number of threads to the CPU usage. This option lets you define the maximum number of threads that will be started for a scan. If the system load is high, fewer than the maximum number of threads may be started.</p>
</section>
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<ul>
<li><a class="reference internal" href="#">General scan options</a><ul>
<li><a class="reference internal" href="#scan-accuracy">Scan Accuracy</a><ul>
<li><a class="reference internal" href="#track-ntfs-hardlinks-and-alternate-data-streams-when-calculating-allocated-space">Track NTFS hardlinks and alternate data streams, when calculating allocated space.</a></li>
<li><a class="reference internal" href="#follow-mount-points-and-external-symbolic-links-to-directories">Follow mount points and external symbolic links to directories</a></li>
<li><a class="reference internal" href="#consider-sharepoint-file-versions-when-calculating-allocated-space">Consider SharePoint file versions, when calculating allocated space</a></li>
</ul>
</li>
<li><a class="reference internal" href="#statistics">Statistics</a><ul>
<li><a class="reference internal" href="#create-statistics-for-age-of-files">Create statistics for age of files</a></li>
<li><a class="reference internal" href="#create-statistics-on-file-extensions">Create statistics on file extensions</a></li>
<li><a class="reference internal" href="#create-statistics-on-file-owners">Create statistics on file owners</a></li>
</ul>
</li>
<li><a class="reference internal" href="#notifications">Notifications</a><ul>
<li><a class="reference internal" href="#show-error-messages-during-scan">Show error messages during scan</a></li>
<li><a class="reference internal" href="#notify-when-the-scan-is-finished">Notify when the scan is finished</a></li>
</ul>
</li>
<li><a class="reference internal" href="#thread-options-expert-option">Thread Options (expert option)</a><ul>
<li><a class="reference internal" href="#thread-priority">Thread Priority</a></li>
<li><a class="reference internal" href="#maximum-number-of-threads-per-scan">Maximum number of threads per scan</a></li>
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