difference between chkdsk /r and chkdsk /r /p Solved

Question

Hello I wanted to know the difference between chkdsk /r and chkdsk /r /p

Hipparchia · Accepted Answer

Instead of saying that some are wrong and others are right, I tell you that you are all right (isn't life beautiful!) Zicman is right: "You don't need to look far; the back of the CD XP is not the same as the ms-dos of the command prompt."  There is indeed a place where /r (to repair) doesn’t work, and another where you can run chkdsk c: /p /r without any issues. The /p, by the way, does not  There are two ways to do a check disk:  1) By opening the command prompt via a session (XP for example), on a powered-on PC. You can open a small CMD and then run chkdsk g /r to initiate the check disk on an external disk identified by the letter G, for example.  2) By booting from the XP CD, selecting repair, and after choosing the partition to fix (1, 2, 3, etc., depending on the installation performed on your hard drive), also having a command prompt (here, "repair console")  chkdsk /p /r works well, and it is indeed the best way to do it on a HDD with OS, because if you try to repair a hard drive from PC A while using PC B, you might have retrieved your hard drive, but the installation files of XP may have errors.  With /r at the end, it reinstalls the damaged components. It’s very practical.  But a little FIXBOOT afterward is often useful if the PC still doesn’t start. (don’t do this when you’ve connected the HDD to another computer, but on the original PC)  Windows documentation is not exhaustive either, as it forgets to mention that /r does not work from the command prompt of the installed system :D https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-xp/bb491051(v=technet.10)?redirectedfrom=MSDN   chkdsk [drive:] /p /r Parameters none Used without parameters, chkdsk displays the status of the disk in the current drive.  drive :  Specifies the drive that you want chkdsk to check.  /p  Performs an exhaustive check even if the drive is not marked for chkdsk to run. This parameter does not make any changes to the drive.  /r Locates bad sectors and recovers readable information. Implies /p.

foobar47 · Answer

Hello,  there is no parameter "/p" in the chkdsk command  A++ -- modesty ceases when one starts to talk about it

francoistexas · Answer

ooh ne fais pas chkdsk /r p

Yoan · Answer

the /p forces verification even if, at first, chkdsk does not detect any errors (which is often the case, especially with an UNMOUNTABLE VOLUME, for example) -- The urgent is done, the impossible is in progress, For miracles, please allow time ...

foobar47 · Answer

No,  /p is not an option for the chkdsk command!  chkdsk /r p indicates a check on drive p, and you need to put the ":" at the end of the p:  chkdsk /r p: -- modesty stops when you start talking about it

freeman · Answer

Between /P and /R  /R defragments the disk, that's it, and /P checks and repairs errors  MAKHIKHA ISCALALA

L'éponge · Answer

However, I confirm on the Windows XP CD in repair mode (R) that /P is available; it allows you to check the drive even if it is not marked as improper, basically, it forces the check.

ZicMan · Answer

Don't look far, the back of the CD XP is not the same as the MS-DOS of the command prompt.

manu007 · Answer

Good evening,  I currently have a laptop in front of me, an Acer, running XP Home, and here are the possible commands: CHKDSK /P === checks if the drive is not marked as improper. CHKDSK /R === searches for defective sectors and recovers readable information ( /P implicit )  So let's stop the nonsense and try to correctly advise those who need help.  The /P does not repair errors.  Have a good evening.

sousou · Answer

but when I type chkdsk /p /r the result is: A:\>Chkdsk /p /r invalid switch - /p instead of using CHKDSK, try the SCANDISK command. SCANDISK can detect and correct a wider range of disk problems.  ( when I open the DOS console it shows A:\> and I don't know what A: is )

Hipparchia · Answer

Sousou (Soulirat ?)  I think you are clearly in case 1) (from my previous message) - you are on XP - you have launched the command prompt - you want to do a check disk on a USB stick or an external hard drive (?)  In this case, if you have read my message, you should know that the attributes (the letters with a slash that we put behind a command) of CHKDSK are not the same as if you had booted from the XP CD. In case 1), there is no attribute /P. So you have the answer to half of your question: you are getting an error message because you used /P /R  Regarding A:, this is your floppy drive. To exit it, simply choose another letter and press enter to change drives. For example C: (and enter) You will go from A:\> to C:\> But you want to check a hard drive (or something else) that has a letter. So you can stay on A: without any problem normally. You just need to indicate that letter in your command. Let's say your USB stick has the letter F: You would need to enter Chkdsk F: /R (it doesn’t matter if you are on A:\>Chkdsk F: /r or C:\>Chkdsk F: /r)  However, if you want to do a check disk on the drive where you installed your operating system (OS), you need to follow procedure 2), and this is a bit more complicated (by the way, I didn’t detail it) and you can do some pretty catastrophic things to your hard drive (especially with fixboot if you don’t know what you’re doing) so I still recommend asking a friend for help on site. You would need to boot from the XP CD, and then open the recovery console (which looks like the DOS command prompt) but there you will be able to do a check disk /P /R  For the rest, on an XP operating system, I recommend defragmenting regularly (several times a year), and in any case... always make double backups of your important things. Generally, we only start backing up after losing important things... Better not to learn the hard way (even if it's effective :p)   Hippa

sousou · Answer

Yes, but the problem is that my PC in DOS doesn't find C: or D:, only A:  whereas I don't have a floppy disk drive because my PC is a notebook (Medion Akoya) = no floppy disk drive and there is no CD drive (I use an external drive).

Hipparchia · Answer

And you want to do a checkdisk on your netbook's hard drive, right? In that case, you'll need to use this method: https://forums.commentcamarche.net/forum/affich-11986271-comment-faire-un-chkdsk-avec-un-netbook  Concerning the drive details in DOS: - if you connect an external drive, it will have a letter, just like a USB stick or a hard drive, or even a partition on a single hard drive (if you have C: and D:, it's probably two partitions) - have you tried the simple method I mentioned to change the location you're in once in the command prompt? (you just enter D: for example)

sousou · Answer

:( Yes, I tried to replace A: with C: but ... A:\>C: Invalid drive specification

Rachid06182 · Answer

The correct command is not chkdsk /p /r but: chkdsk /r /p

atajuju · Answer

I would like to know if typing chkdsk /r in the Windows CD command prompt is equivalent to typing chkdsk /p /r Thank you

Difference between chkdsk /r and chkdsk /r /p

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