{"id":3873,"date":"2016-05-09T03:46:53","date_gmt":"2016-05-09T08:46:53","guid":{"rendered":"http:\/\/neosmart.net\/wiki\/?page_id=3873"},"modified":"2016-05-18T09:08:54","modified_gmt":"2016-05-18T14:08:54","slug":"bootrec","status":"publish","type":"page","link":"https:\/\/neosmart.net\/wiki\/winman\/bootrec\/","title":{"rendered":"bootrec.exe"},"content":{"rendered":"

bootrec.exe<\/strong> is the utility that is used to update the master boot record code, partition bootsector code, and the BCD (boot configuration data). It’s most-commonly used to correct\u00a0boot problems on Windows Vista and later versions of Windows.<\/p>\n

Synopsis<\/span><\/h2>\n

Arguments enclosed with braces\u00a0{ \u00a0}<\/strong>\u00a0are necessary and | stands for “or<\/strong>“.<\/p>\n

bootrec.exe<\/strong> {\/fixmbr<\/strong> | \/fixboot<\/strong> | \/scanos<\/strong> | \/rebuildbcd<\/strong>}<\/pre>\n
Description<\/span><\/h2>\n
The bootrec.exe<\/strong> utility takes\u00a0only one of several valid argument,\u00a0depending on the desired correction behavior. It can be used to update\u00a0a\u00a0disk’s master boot record (MBR<\/strong>) code, a partition’s bootsector\u00a0code, or to\u00a0rebuild the boot configuration data (BCD<\/strong>).<\/p>\n
The options are as follows:<\/p>\n
\/?<\/strong>
\nLists the existing arguments<\/p>\n
\/fixmbr<\/strong>
\nUpdates the master boot record (MBR<\/strong>) code with the code compatible with Windows Vista, 7, 8, 10. It doesn’t edit the existing partition table.<\/p>\n
\/fixboot<\/strong>
\nUpdates the boot sector code\u00a0of the partition used to boot the system\u00a0with the code that loads and runs the\u00a0BOOTMGR<\/strong> bootloader i.e. it works on Windows Vista, 7, 8, 10.<\/p>\n
\/scanos<\/strong>
\nScans all disks for Windows installations that are Windows Vista or of a newer version and returns the number of installations that are not listed in the boot configuration data (BCD<\/strong>\u00a0i.e. can’t be booted into.<\/p>\n
\/rebuildbcd<\/strong>
\nRebuilds the boot configuration data (BCD<\/strong>) by updating it with a choice to boot into versions of Windows installed on the disk that were previously unbootable i.e. adding them to the boot configuration data.<\/p>\n
Exit Status<\/span><\/h2>\n
The bootrec utility exits 0<\/strong> on success and 1<\/strong> if an error occurs.<\/p>\n
Examples<\/span><\/h2>\n
To update the master boot record (MBR<\/strong>) code of the disk in the case it got corrupt or rewritten, resulting in the inability to boot the system:<\/p>\n
bootrec \/fixmbr<\/code><\/strong><\/p>\n
To update the boot sector code of the partition used to boot the system with the code that loads and runs the BOOTMGR bootloader:<\/p>\n
bootrec \/fixboot<\/code><\/strong><\/p>\n
To scan all the Windows installations on the disk that are not included in the BCD:<\/p>\n
bootrec \/scanos<\/code><\/strong><\/p>\n
To update the BCD with the ability to boot into Windows versions installed on the hard disk that were previously unbootable:<\/p>\n
bootrec \/rebuildbcd<\/code><\/strong><\/p>\n
Compatibility<\/span><\/h2>\n
The bootrec.exe<\/strong> utility is compatible with Windows Vista, Windows 7, Windows 8, Windows 10.<\/p>\n
History<\/span><\/h2>\n
Before the bootsect<\/a>\u00a0utility introduced the \/mbr<\/strong><\/code> argument, bootrec \/fixmbr<\/strong><\/code> was the only way of updating the disk’s MBR<\/strong>.<\/p>\n
See Also<\/span><\/h2>\n
bootsect\u00a0\u00a0<\/strong>–\u00a0command-line utility that\u00a0is\u00a0used to update the partition bootsector code and\u00a0the master boot record code.<\/p>\n","protected":false},"excerpt":{"rendered":"
bootrec.exe is the utility that is used to update the master boot record code, partition bootsector code, and the BCD (boot configuration data). It’s most-commonly used to correct\u00a0boot problems on Windows Vista and later versions of Windows. Synopsis Arguments enclosed with braces\u00a0{ \u00a0}\u00a0are necessary and | stands for “or“. bootrec.exe {\/fixmbr | \/fixboot | \/scanos […]<\/p>\n","protected":false},"author":516,"featured_media":0,"parent":3793,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3873","page","type-page","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\t\n\t\t