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is able with built-in software to load the contents of the first 512 bytes of a floppy and to execute it if it is a viable program; boot floppies have a very simple loader program in these bytes. The process is vulnerable to abuse; data floppies could have a virus written to their first sector which
159:: the computer contains a tiny program (bootstrap loader) which will load and run a program found on a boot device. This program may itself be a small program designed to load a larger and more capable program, i.e., the full operating system. To enable booting without the requirement either for a
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A modern PC is configured to attempt to boot from various devices in a certain order. If a computer is not booting from the device desired, such as the floppy drive, the user may have to enter the BIOS Setup function by pressing a special key when the computer is first turned on (such as
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While almost all modern computers can boot from a hard drive containing the operating system and other software, they would not normally be called boot disks (because they are not removable media). Fixed drives (such as
248:), and then changing the boot order. More recent BIOSes permit the interruption of the final stage of the boot process and invoke the Boot Menu by pressing a function key (usually
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All files must be for the same version of the operating system. Complete boot disks can be prepared in one operation by an installed operating system; details vary.
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or utility program. The computer must have a built-in program which will load and execute a program from a boot disk meeting certain standards.
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Different operating systems use different boot disk contents. All boot disks must be compatible with the computer they are designed for.
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Administrative access in case of lost password is possible with an appropriate boot disk with some operating systems
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211:. The use of boot floppies is in decline, due to the availability of other higher-capacity options, such as
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256:). This results in a list of bootable devices being presented, from which a selection may be made.
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are the most common forms of media used, but other media, such as magnetic or paper tape drives,
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device or to write to the boot medium, it is usual for the boot program to use some system
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Macs display the Boot Menu when the power button is pressed and held, the older
548:"'Pull yourself up by your bootstraps' - the meaning and origin of this phrase"
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silently infects the host computer if switched on with the disk in the drive.
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a series of self-sustaining processes that proceed without external help:
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of data in its standard format, making it impractical for loading large
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Removable disk from which a computer can boot an operating system
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Running a temporary operating environment, such as when using a
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Need to change your computer's boot order or access other ..
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processors will display the Boot Menu if user presses the
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reboot.pro - Community forum dedicated to Boot Disks
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Protected Area Run Time
Interface Extension Services
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comes from the idea of lifting oneself by one's own
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video games on modern computers by using a bootable
67:must support booting from the device in question.
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178:As an example, any computer compatible with the
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499:. May 23, 2007. p. 11. Archived from
195:("boot floppies") for PCs usually contain
618:Boot Disk information, sources, and tools
451:By J. D. Biersdorfer (October 8, 1998).
491:"How to Survive the Worst PC Disasters"
473:"How to Make a Compaq System Boot Disk"
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526:"Can I recover from recovering my PC?"
110:Customizing an operating environment
102:Hardware or software troubleshooting
385:Windows Preinstallation Environment
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47:)s that are bootable may be called
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343:A valid boot sector on the disk
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278:while the machine is starting.
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1:
573:"How to enter your PC's BIOS"
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63:can be used. The computer's
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413:El Torito (CD-ROM standard)
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25:digital data storage medium
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199:or miniature versions of
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453:"Emergency Preparedness"
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130:home computers, running
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70:One can make one's own
113:Software demonstration
361:A bootloader such as
393:Windows Boot Manager
290:MS-DOS/PC DOS/DR-DOS
59:, and more recently
581:. October 5, 2011.
503:on October 27, 2020
458:The New York Times
376:Initial ram disk (
303:volume boot record
31:can load and run (
477:Hearst Newspapers
209:operating systems
142:USB flash drive).
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27:from which a
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555:. Retrieved
552:Phrasefinder
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505:. Retrieved
501:the original
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372:Linux kernel
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285:
282:Requirements
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193:floppy disks
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161:mass storage
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98:Data purging
89:installation
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429:Self-loader
346:COMMAND.COM
327:COMMAND.COM
299:boot sector
49:boot drives
507:August 23,
435:References
349:KERNEL.SYS
322:IBMDOS.COM
313:IBMBIO.COM
157:bootstraps
57:ZIP drives
45:hard drive
425:(PARTIES)
318:MSDOS.SYS
191:Bootable
175:storage.
151:The term
72:boot disk
21:boot disk
627:Category
578:PC World
557:June 23,
496:PC World
402:See also
397:BOOT.WIM
363:SYSLINUX
297:A valid
272:⌥ Option
169:RAM disk
118:Live USB
29:computer
418:Live CD
336:FreeDOS
213:CD-ROMs
147:Process
140:FreeDOS
53:CD-ROMs
378:initrd
309:IO.SYS
230:Delete
180:IBM PC
136:MS-DOS
132:MS-DOS
120:drive.
354:Linux
305:(VBR)
268:Intel
201:Linux
187:Media
167:as a
128:Amiga
35:) an
559:2018
509:2020
367:GRUB
173:file
153:boot
78:Uses
65:BIOS
33:boot
365:or
320:or
311:or
276:Alt
274:or
264:Mac
254:F12
252:or
250:F11
246:F12
244:or
242:F10
215:or
197:DOS
165:RAM
138:or
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443:^
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238:F2
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234:F1
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205:MB
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19:A
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