{"id":7238,"date":"2025-04-23T16:22:58","date_gmt":"2025-04-23T23:22:58","guid":{"rendered":"https:\/\/www.terabyteunlimited.com\/kb\/?post_type=lsvr_kba&#038;p=7238"},"modified":"2025-04-23T16:22:58","modified_gmt":"2025-04-23T23:22:58","slug":"warning-unable-to-clear-old-partition-information","status":"publish","type":"lsvr_kba","link":"https:\/\/www.terabyteunlimited.com\/kb\/kb-articles\/warning-unable-to-clear-old-partition-information\/","title":{"rendered":"Warning: Unable to clear old partition information"},"content":{"rendered":"<p><strong><span style=\"color: #ff5500;\">Problem:<\/span><\/strong><\/p>\r\n<p>MakeDisk is unable to successfully create the USB flash drive boot media and fails with the following message:<\/p>\r\n<p><span style=\"color: #ff0000;\">Warning: Unable to clear old partition information. (0)<\/span><\/p>\r\n<p><strong><span style=\"color: #ff5500;\">Cause:<\/span><\/strong><\/p>\r\n<p>MakeDisk is not being allowed access to make the necessary changes to the drive. This is most likely caused by security software blocking access. Windows Defender is known to cause this issue if strict security is being used and MakeDisk is not allowed in Controlled Folder Access. Other security programs may also cause this issue.<\/p>\r\n<p><strong><span style=\"color: #ff5500;\">Solution:<\/span><\/strong><\/p>\r\n<p>Configure the security program to allow MakeDisk to access and make changes to the drive. Basic instructions for Windows Defender in Windows 11 are shown below. Third-party security programs should also have similar settings available.<\/p>\r\n<p><strong><span style=\"color: #005858;\">Windows Security \/ Windows Defender (Windows 11)<\/span><\/strong><\/p>\r\n<p><strong>Allow a program access to folders protected by Controlled Folder Access:<\/strong><\/p>\r\n<ol>\r\n\t<li>Open Windows Settings and select the <em>Privacy and security<\/em> section.<\/li>\r\n\t<li>Select <em>Windows Security<\/em>.<\/li>\r\n\t<li>Select the <em>Virus &amp; threat protection<\/em> section.<\/li>\r\n\t<li>Scroll to the Ransomware protection section and click the <em>Manage ransomware protection<\/em> link.<\/li>\r\n\t<li>In the Controlled folder access section, click the <em>Allow an app through Controlled folder access<\/em> link.<\/li>\r\n\t<li>Click the <em>Add an allowed app<\/em> button and then select either <em>Recently blocked apps<\/em> or <em>Browse all apps<\/em>.<\/li>\r\n\t<li>Select or browse to the MakeDisk program (makedisk.exe) to add it.<\/li>\r\n\t<li>MakeDisk should now be shown in the list of allowed apps.<\/li>\r\n<\/ol>\r\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Problem: MakeDisk is unable to successfully create the USB flash drive boot media and fails with the following message: Warning: Unable to clear old partition information. (0) Cause: MakeDisk is not being allowed access to make the necessary changes to the drive. This is most likely caused by security software blocking access. Windows Defender is [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"lsvr_kba_cat":[1807],"lsvr_kba_tag":[],"class_list":["post-7238","lsvr_kba","type-lsvr_kba","status-publish","hentry","lsvr_kba_cat-makedisk"],"_links":{"self":[{"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/lsvr_kba\/7238","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\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/comments?post=7238"}],"version-history":[{"count":1,"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/lsvr_kba\/7238\/revisions"}],"predecessor-version":[{"id":7239,"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/lsvr_kba\/7238\/revisions\/7239"}],"wp:attachment":[{"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/media?parent=7238"}],"wp:term":[{"taxonomy":"lsvr_kba_cat","embeddable":true,"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/lsvr_kba_cat?post=7238"},{"taxonomy":"lsvr_kba_tag","embeddable":true,"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/lsvr_kba_tag?post=7238"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}