I thought you did a good, basic explanation. Remember "data" is a 0 or a 1. As I always understood it, the file name just points to where on the disk the bits are located, deleting the file name just removes the "map" freeing those storage locations to be used or rewritten.
I found that deleting a file on say a USB drive does not remove it from the USB drive until the trash is deleted. Try doing the PROPERTIES function after deleting say a large file on that USB drive and then doing it again after emptying the Trash flle.
@6:54 "...a free space wiping utility will do this to an area on the disk that's not currently containing any data." By "free", that refers to absence of data, as in "free of any data", and not free as in $0 cost of a space wiping utility. Free, in this case, is not referring to money. As to wiping an area that currently has no data... Yes, the utility will do that. But its real goal is to wipe areas of the disk that do contain data (data that you deleted but is still lingering and could possibly be recovered).
Thank you. I appreciated the caveat at 6:01 that this video applies to magnetic spinning HDs. Would love to know more about SSDs. I'm curious if I have securely deleted confidential data. I shift-delete those original data after zipping them. But on SSDs I suspect they could be recovered, not casually, but professionally (not a real-world concern for me). [Ultimately, I secure delete old drives with a club hammer🔨🔨 ]
I'm interested about deletion with regards to social media. They still have to keep deleted contents for legal reason but how do they manage to prevent those from being put back. It doesn't happen even when the whole system was breached.
This is more down to the software behind the Social media site in question. Generally, once you delete a "post" (Tweet/Toot/Skeet? etc.), the software on the site marks the post as "deleted" and hides it from almost everybody. At this point, Moderators and Admins may be the only ones able to see these deleted posts. After an preset time (months/years), your "deleted" post may be actually deleted and the ability to undelete the post will also have gone. If your Deleted post has been reported or flagged up for whatever reason, the offending post will be not permanently deleted until the Moderator/Admin clears the issue.
@@IBVideo-hdl Deleting the "Post" will hide it, not actually delete it. They often will have multiple backups running across the world, so they can restore to a certain date and time, usually. That "delete flag" is kept with the post, along with many other pieces of "meta data".
This is why huge solid state drives are not wise to store critical data. A file will not be overwritten until the entire drive is full and the beginning is then being overwritten. A full format takes care of this by writing a pattern to the entire drive.
They go to the secret storage on ur hdd u cannot access, only police and Intel service can. Or they are not even deleted and stay on the server for later use. Police or whatever
so, my google/gmail account was permanently deleted a few months ago, because it said that I was underage, and now after i tried the account recovery on google, it says that it couldnt find my account. I REALLY need help on this because I have some very valuable stuff connected to that gmail, so PLEASE, please, Leo im begging, is there any way to recover this gmail account??
(Sorry for the form response, but I get this question A LOT.) Please review the account recovery options as outlined in this article: askleo.com/access-gmail-without-phone-verification/ If Google's recovery process doesn't work for you -- maybe you don't have the recovery email or phone -- MAKE SURE to follow Google's instructions CAREFULLY and COMPLETELY. If the recovery process can't be made to work, I know of no way to recover the account. If that's your situation I'm very sorry. If you DO recover your account you'll want to check the steps in this article to prevent losing it again: askleo.com/google-account-hacked/ Good luck!
Deleted data turns into heat, which leaves your computer once it shuts off and cools down. However, the universe is an excellent storer of information, so truth be told, you can't delete crap.
✅ Watch next ▶ Delete Not Freeing Up Space? Take Out the Trash! ▶ ua-cam.com/video/GknBY6rXsAQ/v-deo.html
I thought you did a good, basic explanation. Remember "data" is a 0 or a 1. As I always understood it, the file name just points to where on the disk the bits are located, deleting the file name just removes the "map" freeing those storage locations to be used or rewritten.
I found that deleting a file on say a USB drive does not remove it from the USB drive until the trash is deleted. Try doing the PROPERTIES function after deleting say a large file on that USB drive and then doing it again after emptying the Trash flle.
@6:54 "...a free space wiping utility will do this to an area on the disk that's not currently containing any data."
By "free", that refers to absence of data, as in "free of any data", and not free as in $0 cost of a space wiping utility. Free, in this case, is not referring to money.
As to wiping an area that currently has no data...
Yes, the utility will do that. But its real goal is to wipe areas of the disk that do contain data (data that you deleted but is still lingering and could possibly be recovered).
Wiping "free space" means wiping any sector that the File System indicates as unused.
Thanks!
Thanks for breaking this down for us novices.
Thank you. I appreciated the caveat at 6:01 that this video applies to magnetic spinning HDs. Would love to know more about SSDs. I'm curious if I have securely deleted confidential data. I shift-delete those original data after zipping them. But on SSDs I suspect they could be recovered, not casually, but professionally (not a real-world concern for me). [Ultimately, I secure delete old drives with a club hammer🔨🔨 ]
I found and use "Sure Delete"
the dd command included in every unix-like OS is free and very flexible. Mac OS and Linux have it
I'm interested about deletion with regards to social media. They still have to keep deleted contents for legal reason but how do they manage to prevent those from being put back. It doesn't happen even when the whole system was breached.
I don't know what you mean by "put back".
This is more down to the software behind the Social media site in question.
Generally, once you delete a "post" (Tweet/Toot/Skeet? etc.), the software on the site marks the post as "deleted" and hides it from almost everybody. At this point, Moderators and Admins may be the only ones able to see these deleted posts. After an preset time (months/years), your "deleted" post may be actually deleted and the ability to undelete the post will also have gone. If your Deleted post has been reported or flagged up for whatever reason, the offending post will be not permanently deleted until the Moderator/Admin clears the issue.
Back to the way they appear before deleted.
If it is “in the cloud,” it’s on someone else’s computer ( probably several) and it is FOREVER and PUBLIC.
@@IBVideo-hdl Deleting the "Post" will hide it, not actually delete it. They often will have multiple backups running across the world, so they can restore to a certain date and time, usually. That "delete flag" is kept with the post, along with many other pieces of "meta data".
This is why huge solid state drives are not wise to store critical data. A file will not be overwritten until the entire drive is full and the beginning is then being overwritten. A full format takes care of this by writing a pattern to the entire drive.
SSD's running on reasonably modern platforms are pretty quick to perform TRIM operations on freed up blocks.
If you really want to make a HDD unreadable either drill a hole through the platters or remove them and run a magnet over it
They go to the secret storage on ur hdd u cannot access, only police and Intel service can. Or they are not even deleted and stay on the server for later use. Police or whatever
Nope.
Backup Backup Backup!!!!
An hdd can actually store 8 to 10 times the size they tell you
Nope.
Another word used is "remove". What does this mean?
Depends on context. Could mean many things.
recycle bin for once when its a file on pc then when you go to recycle bin and delete then its gone unless you use recovery software
If you can use recovery software, it was not deleted in the first place
so, my google/gmail account was permanently deleted a few months ago, because it said that I was underage, and now after i tried the account recovery on google, it says that it couldnt find my account. I REALLY need help on this because I have some very valuable stuff connected to that gmail, so PLEASE, please, Leo im begging, is there any way to recover this gmail account??
(Sorry for the form response, but I get this question A LOT.)
Please review the account recovery options as outlined in this article: askleo.com/access-gmail-without-phone-verification/
If Google's recovery process doesn't work for you -- maybe you don't have the recovery email or phone -- MAKE SURE to follow Google's instructions CAREFULLY and COMPLETELY.
If the recovery process can't be made to work, I know of no way to recover the account. If that's your situation I'm very sorry.
If you DO recover your account you'll want to check the steps in this article to prevent losing it again: askleo.com/google-account-hacked/
Good luck!
Deleted data turns into heat, which leaves your computer once it shuts off and cools down. However, the universe is an excellent storer of information, so truth be told, you can't delete crap.