{"id":410,"date":"2010-03-15T07:24:00","date_gmt":"2010-03-15T14:24:00","guid":{"rendered":"https:\/\/kb.terabyteunlimited.com\/kb-articles\/unable-to-access-removable-drives-after-installing-image-for-windows-when-acronis-software-is-already-installed\/"},"modified":"2021-09-07T15:05:27","modified_gmt":"2021-09-07T22:05:27","slug":"unable-to-access-removable-drives-after-installing-image-for-windows-when-acronis-software-is-already-installed","status":"publish","type":"lsvr_kba","link":"https:\/\/www.terabyteunlimited.com\/kb\/kb-articles\/unable-to-access-removable-drives-after-installing-image-for-windows-when-acronis-software-is-already-installed\/","title":{"rendered":"Unable to Access Removable Drives after Installing Image for Windows when Acronis Software is Already Installed"},"content":{"rendered":"<p><strong><font color=\"#ff5500\">Problem:<\/font><\/strong> <\/p>\r\n  <p>Installing Image for Windows when Acronis software is already installed, results in one or more of the following problems when using removable drives:<\/p>\r\n  <ul type=\"disc\">\r\n    <li>Drive is not shown in Explorer.<br \/><br \/><\/li>\r\n    <li>Drive is shown in Disk Management, but no drive letter is assigned. Manually assigning a drive letter may allow other programs to access the drive, but the drive is still not shown in Explorer.<br \/><br \/><\/li>\r\n    <li>Image for Windows and True Image can see the drive, but no drive letter is associated with it.<br \/><br \/><\/li>\r\n    <li>Drive is shown in Disk Management, but the status is reported as <em>No Media<\/em>.<br \/><br \/><\/li>\r\n    <li>Disk Management may fail to start due to an error.<br \/><br \/><\/li>\r\n    <li>Disk Management may hang when scanning disks.<br \/><br \/><\/li>\r\n    <li>Safely Remove Hardware shows the drive, but only shows the name (no drive letter).<br \/><\/li>\r\n  <\/ul>\r\n  <p>Acronis software includes (but is not limited to) the following:<\/p>\r\n  <ul>\r\n    <li>True Image <\/li>\r\n    <li>Backup and Security <\/li>\r\n    <li>Disk Director <\/li>\r\n    <li>Seagate's DiscWizard (based on True Image) <\/li>\r\n    <li>True Image WD Edition <\/li>\r\n  <\/ul>\r\n  <p>These problems can occur on Windows XP and Windows Vista. This problem should not normally occur in Windows 7 if Image for Windows 2.54 or later is used and the Acronis software installed supports Windows 7. Installing Acronis software in Windows 7 that doesn't support Windows 7 may cause this problem and is not recommended.<\/p>\r\n  <p>While any type of removable drive may be affected, the following types are the most common: USB flashdrives, USB hard drives, ZIP drives, FireWire drives, and eSATA drives.<\/p>\r\n  <p><strong><font color=\"#ff5500\">Cause:<\/font><\/strong> <\/p>\r\n  <p>The Acronis <em>snapman<\/em> driver is causing problems with other filter drivers (including PHYLock and PartMgr). Older versions of the <em>snapman<\/em> driver block Image for Windows&nbsp;from communicating with PHYLock and therefore the Image for Windows installer ensures <em>snapman<\/em> is not between Image for Windows and PHYLock. However, newer versions of the <em>snapman<\/em> driver&nbsp;are not properly copying down the device characteristics from the lower driver&nbsp;and may still be blocking certain IOCTLS which prevents PartMgr from knowing the proper drive type and hense the various problems listed above.<\/p>\r\n  <p><strong><font color=\"#ff5500\">Solution:<\/font><\/strong><\/p>\r\n  <p>In most cases, the problem can be solved by doing one of the following:<\/p>\r\n  <ul type=\"disc\">\r\n    <li>Uninstall the Acronis software. This is the best option.<br \/><br \/><\/li>\r\n    <li>Uninstall the Acronis software, reboot the computer, then reinstall the Acronis software. Doing this places the <em>snapman<\/em> driver after PartMgr in the list of filter drivers. This is an option if you wish to continue using the Acronis software along with Image for Windows.<br \/><br \/><\/li>\r\n    <li>Manually edit the <strong>UpperFilters<\/strong> registry key and place the list of filter drivers into an order that allows them to function correctly. If you are not comfortable making registry changes, using this method is not recommended.<br \/><br \/><font color=\"#ff0000\"><strong>Note:<\/strong> If done incorrectly, the following changes can result in the computer failing to boot into Windows. You may wish to create a Restore Point or backup image before continuing.<\/font><br \/><br \/>\r\n      <ol type=\"1\">\r\n        <li>Start the Registry Editor. This can be done by pressing <strong>Windows Key + R<\/strong> to open the <strong>Run<\/strong> window. Type in <strong>regedit<\/strong> and click <strong>OK<\/strong>. If running Windows Vista or Windows 7 with UAC enabled, click <strong>Continue<\/strong> or <strong>Yes<\/strong> to allow the program to run.<br \/><br \/><\/li>\r\n        <li>Browse to the following registry key:<br \/><font color=\"#008000\">HKEY_LOCAL_MACHINE&#92;SYSTEM&#92;CurrentControlSet&#92;Control&#92;Class&#92;{4D36E967-E325-11CE-BFC1-08002BE10318} <\/font><br \/><br \/><\/li>\r\n        <li>On the right side of the window, you'll see the list of values for the key. One of these values is <strong>UpperFilters<\/strong>. This value contains the list of drivers, including <em>snapman<\/em> and <em>phylock<\/em>.<br \/><br \/><\/li>\r\n        <li>Right-click on <strong>UpperFilters<\/strong> and select <strong>Modify...<\/strong> from the pop-up menu.<br \/><br \/><\/li>\r\n        <li>Reorder the list of filter drivers as required to allow them to function correctly. When finished, click <strong>OK<\/strong> to save the changes and then restart Windows.<br \/><br \/><strong>Keep in mind the following:<\/strong> <em>phylock<\/em> must be listed before <em>PartMgr<\/em>. Also, <em>snapman<\/em> will need to either be listed before <em>phylock<\/em> or after <em>PartMgr<\/em>, depending on the version of Acronis software being used (see below).<br \/><br \/><u>Older versions<\/u> of the <em>snapman<\/em> driver will need to be placed before <em>phylock<\/em> so it doesn't block IOCTLS and prevent Image for Windows from communicating with PHYLock. This usually includes the <em>snapman<\/em> driver used with older versions of True Image (version 6, 7, 8, and possibly the early builds of 9).<br \/><br \/><u>Newer versions<\/u> of the <em>snapman<\/em> driver need to be placed after PartMgr to avoid problems with PartMgr. This includes the <em>snapman<\/em> driver used with the more current versions of True Image (version 9, 10, 11, 2009, and 2010). <strong>Note:<\/strong> Some versions of the <em>snapman<\/em> driver in this category include a number with the name. For example, the driver may be named <em>snapman380<\/em> instead of <em>snapman<\/em>.<br \/><br \/>Here is an example of what the <strong>UpperFilters<\/strong> value looks like in Windows XP when True Image 2009 (build 9,809) is installed followed by Image for Windows 2.54:<br \/><font color=\"#008000\">tdrpman251 snapman phylock partmgr<\/font><br \/><br \/>In this case, the change would be:<br \/><font color=\"#008000\">tdrpman251 phylock partmgr snapman<\/font><br \/><br \/><strong>Note:<\/strong> The above example is just that, an example. <br \/><br \/>Using this method doesn't require uninstalling and reinstalling the Acronis software and may therefore be the easiest solution, especially if multiple Acronis programs are installed.<br \/><\/li>\r\n      <\/ol>\r\n    <\/li>\r\n  <\/ul>\r\n  <p>&nbsp;<\/p><hr \/>\r\n  <p><strong><font color=\"#ff5500\">Technical Notes:<\/font><\/strong><br \/><br \/><\/p>\r\n  <p>Be aware that until there is a proper and stable working version of the Acronis filter drivers, that&nbsp;because of the many different versions\/builds of Acronis software, the multiple versions of the <em>snapman<\/em> driver, and the various installation methods used by Acronis, it's possible that a working system may develop problems after installing Acronis updates or upgrades.<\/p>\r\n  <p>If you are planning on installing current versions of both Image for Windows and Acronis software, it's recommended to install Image for Windows first and use it prior to installing any Acronis software.<\/p>","protected":false},"excerpt":{"rendered":"<p>Problem: Installing Image for Windows when Acronis software is already installed, results in one or more of the following problems when using removable drives: Drive is not shown in Explorer. Drive is shown in Disk Management, but no drive letter is assigned. Manually assigning a drive letter may allow other programs to access the drive, [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"lsvr_kba_cat":[1790],"lsvr_kba_tag":[2121],"class_list":["post-410","lsvr_kba","type-lsvr_kba","status-publish","hentry","lsvr_kba_cat-problem-solving-image-for-windows","lsvr_kba_tag-image-for-windows"],"_links":{"self":[{"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/lsvr_kba\/410","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/lsvr_kba"}],"about":[{"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/types\/lsvr_kba"}],"author":[{"embeddable":true,"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/comments?post=410"}],"version-history":[{"count":1,"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/lsvr_kba\/410\/revisions"}],"predecessor-version":[{"id":6386,"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/lsvr_kba\/410\/revisions\/6386"}],"wp:attachment":[{"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/media?parent=410"}],"wp:term":[{"taxonomy":"lsvr_kba_cat","embeddable":true,"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/lsvr_kba_cat?post=410"},{"taxonomy":"lsvr_kba_tag","embeddable":true,"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/lsvr_kba_tag?post=410"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}