Calibre 似乎将自身与程序支持的所有文件类型相关联（删除时不会清除注册表项）：
Registry Key Name
HKCU\Software\calibre\calibre64bit\Capabilities ApplicationDescription
HKCU\Software\calibre\calibre64bit\Capabilities ApplicationName
HKCU\Software\calibre\calibre64bit\Capabilities ApplicationIcon
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .djvu
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .prc
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .imp
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .cbz
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .txt
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .ibook
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .cbc
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .book
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .azw1
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .pobi
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .htm
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .html
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .cbr
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .mobi
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .djv
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .ps
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .azw3
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .text
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .odt
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .chm
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .md
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .markdown
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .pdb
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .pdf
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .epub
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .docm
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .lrx
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .rtf
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .lrf
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .fb2
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .docx
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .azw
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .doc
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .xhtml
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .pml
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .ibooks
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .tpz
HKCU\Software\calibre\calibre64bit\Capabilities\FileAssociations .xps
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations image/vnd.djvu
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations application/x-mobipocket-ebook
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations application/vnd.accpac.simply.imp
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations application/x-cbz
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations text/plain
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations application/x-ibooks+zip
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations application/x-cbc
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations application/x-maker
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations application/x-topaz-ebook
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations application/x-mobipocket-subscription
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations text/html
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations application/x-cbr
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations application/postscript
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations application/x-mobi8-ebook
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations application/vnd.oasis.opendocument.text
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations chemical/x-chemdraw
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations text/x-markdown
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations application/ereader
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations application/pdf
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations application/epub+zip
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations application/vnd.ms-word.document.macroenabled.12
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations application/x-sony-bbeb
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations text/rtf
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations text/fb2+xml
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations application/vnd.openxmlformats-officedocument.wordprocessingml.document
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations application/msword
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations application/xhtml+xml
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations application/vnd.ctc-posml
HKCU\Software\calibre\calibre64bit\Capabilities\MimeAssociations application/vnd.ms-xpsdocument
HKCU\Software\calibre\calibre64bit\Capabilities\shell\open\command
HKCU\Software\calibre\Editor64bit\Capabilities ApplicationDescription
HKCU\Software\calibre\Editor64bit\Capabilities ApplicationName
HKCU\Software\calibre\Editor64bit\Capabilities ApplicationIcon
HKCU\Software\calibre\Editor64bit\Capabilities\FileAssociations .xhtml
HKCU\Software\calibre\Editor64bit\Capabilities\FileAssociations .azw3
HKCU\Software\calibre\Editor64bit\Capabilities\FileAssociations .epub
HKCU\Software\calibre\Editor64bit\Capabilities\FileAssociations .htm
HKCU\Software\calibre\Editor64bit\Capabilities\FileAssociations .html
HKCU\Software\calibre\Editor64bit\Capabilities\FileAssociations .docx
HKCU\Software\calibre\Editor64bit\Capabilities\MimeAssociations application/xhtml+xml
HKCU\Software\calibre\Editor64bit\Capabilities\MimeAssociations application/x-mobi8-ebook
HKCU\Software\calibre\Editor64bit\Capabilities\MimeAssociations application/epub+zip
HKCU\Software\calibre\Editor64bit\Capabilities\MimeAssociations text/html
HKCU\Software\calibre\Editor64bit\Capabilities\MimeAssociations application/vnd.openxmlformats-officedocument.wordprocessingml.document
HKCU\Software\calibre\Editor64bit\Capabilities\shell\open\command
HKCU\Software\calibre\Viewer64bit\Capabilities ApplicationDescription
HKCU\Software\calibre\Viewer64bit\Capabilities ApplicationName
HKCU\Software\calibre\Viewer64bit\Capabilities ApplicationIcon
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .djvu
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .prc
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .azw3
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .cbc
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .pobi
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .htm
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .html
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .cbr
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .shtml
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .opf
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .mobi
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .djv
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .txt
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .text
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .odt
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .chm
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .md
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .markdown
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .pdb
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .pdf
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .epub
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .docm
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .rtf
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .lrf
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .fb2
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .docx
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .azw
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .xhtml
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .pml
HKCU\Software\calibre\Viewer64bit\Capabilities\FileAssociations .cbz
HKCU\Software\calibre\Viewer64bit\Capabilities\MimeAssociations image/vnd.djvu
HKCU\Software\calibre\Viewer64bit\Capabilities\MimeAssociations application/x-mobipocket-ebook
HKCU\Software\calibre\Viewer64bit\Capabilities\MimeAssociations application/x-mobi8-ebook
HKCU\Software\calibre\Viewer64bit\Capabilities\MimeAssociations application/x-cbc
HKCU\Software\calibre\Viewer64bit\Capabilities\MimeAssociations application/x-mobipocket-subscription
HKCU\Software\calibre\Viewer64bit\Capabilities\MimeAssociations text/html
HKCU\Software\calibre\Viewer64bit\Capabilities\MimeAssociations application/x-cbr
HKCU\Software\calibre\Viewer64bit\Capabilities\MimeAssociations application/oebps-package+xml
HKCU\Software\calibre\Viewer64bit\Capabilities\MimeAssociations text/plain
HKCU\Software\calibre\Viewer64bit\Capabilities\MimeAssociations application/vnd.oasis.opendocument.text
HKCU\Software\calibre\Viewer64bit\Capabilities\MimeAssociations chemical/x-chemdraw
HKCU\Software\calibre\Viewer64bit\Capabilities\MimeAssociations text/x-markdown
HKCU\Software\calibre\Viewer64bit\Capabilities\MimeAssociations application/ereader
HKCU\Software\calibre\Viewer64bit\Capabilities\MimeAssociations application/pdf
HKCU\Software\calibre\Viewer64bit\Capabilities\MimeAssociations application/epub+zip
HKCU\Software\calibre\Viewer64bit\Capabilities\MimeAssociations application/vnd.ms-word.document.macroenabled.12
HKCU\Software\calibre\Viewer64bit\Capabilities\MimeAssociations text/rtf
HKCU\Software\calibre\Viewer64bit\Capabilities\MimeAssociations application/x-sony-bbeb
HKCU\Software\calibre\Viewer64bit\Capabilities\MimeAssociations text/fb2+xml
HKCU\Software\calibre\Viewer64bit\Capabilities\MimeAssociations application/vnd.openxmlformats-officedocument.wordprocessingml.document
HKCU\Software\calibre\Viewer64bit\Capabilities\MimeAssociations application/xhtml+xml
HKCU\Software\calibre\Viewer64bit\Capabilities\MimeAssociations application/vnd.ctc-posml
HKCU\Software\calibre\Viewer64bit\Capabilities\MimeAssociations application/x-cbz
HKCU\Software\calibre\Viewer64bit\Capabilities\shell\open\command
HKCU\Software\Classes\.azw1\OpenWithProgIDs calibre64bit.AssocFile.AZW1
HKCU\Software\Classes\.azw3\OpenWithProgIDs calibreViewer64bit.AssocFile.AZW3
HKCU\Software\Classes\.azw3\OpenWithProgIDs calibreEditor64bit.AssocFile.AZW3
HKCU\Software\Classes\.azw3\OpenWithProgIDs calibre64bit.AssocFile.AZW3
HKCU\Software\Classes\.azw\OpenWithProgIDs calibreViewer64bit.AssocFile.AZW
HKCU\Software\Classes\.azw\OpenWithProgIDs calibre64bit.AssocFile.AZW
HKCU\Software\Classes\.book\OpenWithProgIDs calibre64bit.AssocFile.BOOK
HKCU\Software\Classes\.cbc\OpenWithProgIDs calibreViewer64bit.AssocFile.CBC
HKCU\Software\Classes\.cbc\OpenWithProgIDs calibre64bit.AssocFile.CBC
HKCU\Software\Classes\.cbr\OpenWithProgIDs calibreViewer64bit.AssocFile.CBR
HKCU\Software\Classes\.cbr\OpenWithProgIDs calibre64bit.AssocFile.CBR
HKCU\Software\Classes\.cbz\OpenWithProgIDs calibreViewer64bit.AssocFile.CBZ
HKCU\Software\Classes\.cbz\OpenWithProgIDs calibre64bit.AssocFile.CBZ
HKCU\Software\Classes\.chm\OpenWithProgIDs calibreViewer64bit.AssocFile.CHM
HKCU\Software\Classes\.chm\OpenWithProgIDs calibre64bit.AssocFile.CHM
HKCU\Software\Classes\.djv\OpenWithProgIDs calibreViewer64bit.AssocFile.DJV
HKCU\Software\Classes\.djv\OpenWithProgIDs calibre64bit.AssocFile.DJV
HKCU\Software\Classes\.djvu\OpenWithProgIDs calibreViewer64bit.AssocFile.DJVU
HKCU\Software\Classes\.djvu\OpenWithProgIDs calibre64bit.AssocFile.DJVU
HKCU\Software\Classes\.doc\OpenWithProgIDs calibre64bit.AssocFile.DOC
HKCU\Software\Classes\.docm\OpenWithProgIDs calibreViewer64bit.AssocFile.DOCM
HKCU\Software\Classes\.docm\OpenWithProgIDs calibre64bit.AssocFile.DOCM
HKCU\Software\Classes\.docx\OpenWithProgIDs calibreViewer64bit.AssocFile.DOCX
HKCU\Software\Classes\.docx\OpenWithProgIDs calibreEditor64bit.AssocFile.DOCX
HKCU\Software\Classes\.docx\OpenWithProgIDs calibre64bit.AssocFile.DOCX
HKCU\Software\Classes\.epub\OpenWithProgIDs calibreViewer64bit.AssocFile.EPUB
HKCU\Software\Classes\.epub\OpenWithProgIDs calibreEditor64bit.AssocFile.EPUB
HKCU\Software\Classes\.epub\OpenWithProgIDs calibre64bit.AssocFile.EPUB
HKCU\Software\Classes\.fb2\OpenWithProgIDs calibreViewer64bit.AssocFile.FB2
HKCU\Software\Classes\.fb2\OpenWithProgIDs calibre64bit.AssocFile.FB2
HKCU\Software\Classes\.htm\OpenWithProgids calibreViewer64bit.AssocFile.HTM
HKCU\Software\Classes\.htm\OpenWithProgids calibreEditor64bit.AssocFile.HTM
HKCU\Software\Classes\.htm\OpenWithProgids calibre64bit.AssocFile.HTM
HKCU\Software\Classes\.html\OpenWithProgids calibreViewer64bit.AssocFile.HTML
HKCU\Software\Classes\.html\OpenWithProgids calibreEditor64bit.AssocFile.HTML
HKCU\Software\Classes\.html\OpenWithProgids calibre64bit.AssocFile.HTML
HKCU\Software\Classes\.ibook\OpenWithProgIDs calibre64bit.AssocFile.IBOOK
HKCU\Software\Classes\.ibooks\OpenWithProgIDs calibre64bit.AssocFile.IBOOKS
HKCU\Software\Classes\.imp\OpenWithProgIDs calibre64bit.AssocFile.IMP
HKCU\Software\Classes\.lrf\OpenWithProgIDs calibreViewer64bit.AssocFile.LRF
HKCU\Software\Classes\.lrf\OpenWithProgIDs calibre64bit.AssocFile.LRF
HKCU\Software\Classes\.lrx\OpenWithProgIDs calibre64bit.AssocFile.LRX
HKCU\Software\Classes\.markdown\OpenWithProgIDs calibreViewer64bit.AssocFile.MARKDOWN
HKCU\Software\Classes\.markdown\OpenWithProgIDs calibre64bit.AssocFile.MARKDOWN
HKCU\Software\Classes\.md\OpenWithProgIDs calibreViewer64bit.AssocFile.MD
HKCU\Software\Classes\.md\OpenWithProgIDs calibre64bit.AssocFile.MD
HKCU\Software\Classes\.mobi\OpenWithProgIDs calibreViewer64bit.AssocFile.MOBI
HKCU\Software\Classes\.mobi\OpenWithProgIDs calibre64bit.AssocFile.MOBI
HKCU\Software\Classes\.odt\OpenWithProgIDs calibreViewer64bit.AssocFile.ODT
HKCU\Software\Classes\.odt\OpenWithProgIDs calibre64bit.AssocFile.ODT
HKCU\Software\Classes\.opf\OpenWithProgIDs calibreViewer64bit.AssocFile.OPF
HKCU\Software\Classes\.pdb\OpenWithProgIDs calibreViewer64bit.AssocFile.PDB
HKCU\Software\Classes\.pdb\OpenWithProgIDs calibre64bit.AssocFile.PDB
HKCU\Software\Classes\.pdf\OpenWithProgids calibreViewer64bit.AssocFile.PDF
HKCU\Software\Classes\.pdf\OpenWithProgids calibre64bit.AssocFile.PDF
HKCU\Software\Classes\.pml\OpenWithProgIDs calibreViewer64bit.AssocFile.PML
HKCU\Software\Classes\.pml\OpenWithProgIDs calibre64bit.AssocFile.PML
HKCU\Software\Classes\.pobi\OpenWithProgIDs calibreViewer64bit.AssocFile.POBI
HKCU\Software\Classes\.pobi\OpenWithProgIDs calibre64bit.AssocFile.POBI
HKCU\Software\Classes\.prc\OpenWithProgIDs calibreViewer64bit.AssocFile.PRC
HKCU\Software\Classes\.prc\OpenWithProgIDs calibre64bit.AssocFile.PRC
HKCU\Software\Classes\.ps\OpenWithProgIDs calibre64bit.AssocFile.PS
HKCU\Software\Classes\.rtf\OpenWithProgIDs calibreViewer64bit.AssocFile.RTF
HKCU\Software\Classes\.rtf\OpenWithProgIDs calibre64bit.AssocFile.RTF
HKCU\Software\Classes\.shtml\OpenWithProgids calibreViewer64bit.AssocFile.SHTML
HKCU\Software\Classes\.text\OpenWithProgIDs calibreViewer64bit.AssocFile.TEXT
HKCU\Software\Classes\.text\OpenWithProgIDs calibre64bit.AssocFile.TEXT
HKCU\Software\Classes\.tpz\OpenWithProgIDs calibre64bit.AssocFile.TPZ
HKCU\Software\Classes\.txt\OpenWithProgIDs calibreViewer64bit.AssocFile.TXT
HKCU\Software\Classes\.txt\OpenWithProgIDs calibre64bit.AssocFile.TXT
HKCU\Software\Classes\.xhtml\OpenWithProgids calibreViewer64bit.AssocFile.XHTML
HKCU\Software\Classes\.xhtml\OpenWithProgids calibreEditor64bit.AssocFile.XHTML
HKCU\Software\Classes\.xhtml\OpenWithProgids calibre64bit.AssocFile.XHTML
HKCU\Software\Classes\.xps\OpenWithProgIDs calibre64bit.AssocFile.XPS
[...] 由于 Stack Exchange 的 30,000 个字符限制，我无法分享所有条目。总共有超过 700 个HKCU\Software关键条目，其中包含calibre（使用Nirsoft 的 Regscanner）。
除了批量删除注册表项之外，还有其他更安全的方法来清除软件关联吗？由于 Calibre 仍然出现在 Windows 10 的“打开方式”菜单中，因此剩余的值具有实际影响：
