Hard drive maintenance points
Summary
The hard drive suddenly doesn't read? It contains several years of working papers, pictures of children's growth, or important project material — a feeling of “heart stop” — that many people are expected to experience. The core logic of hard drive maintenance is better understood than the core logic of panic: first to judge the type of failure (not to treat “false” as “bad”) and then to address it (logical problems can be tried themselves, and physical problems must never be broken) and finally to hold the bottom line (data security always ranks first). This article will teach you how to quickly determine whether the hard drive is a “temporary” or a “real strike”, three specific steps for repairing common logical failures, what must be done with professionals, and how to avoid pitfalls when delivering repairs. You'll find that the hard drive is broken, and it's not that scary。
First, let's see if your hard drive is “false or bad”
The hard drive is out of order, and it takes five minutes to make a basic judgment. Like people who are sick, it's important to distinguish between cold or pneumonia, and hard drive failure from “logical failure” and “physical failure” to treat differently。
1. 1 logical malfunction: "software grumpy" capable of repairing itself
In short, the logical failure is that the hard drive is “hardware is not broken, but the system is wrong”. For example, document system damage, loss of partition table, virus attack or error in the deletion of system files. This situation is typical of:
Computers can recognize hard drives (e. G., " my computer " can see discs), but open the hint " formatting " is not accessible
The speed of hard drive reading and writing has suddenly slowed, and it takes half a day to open the folder
Some of the files become uncoded or indicate "document damage"。
For example, my colleague lee suddenly called "the hard drive is dead" last week, saying that "the d drive needs to be formatted" and that he had a six-month draft. I told him not to rush, but right-click d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d。
1. 2 physical breakdown: “hardware strike”, never touch it
Physical malfunctions are problems with internal parts of the hard drive, such as damage to the magnetic head, jamming of the electric machine, plate cuts, or poor interface/line contact. The signal of this is clear:
The computer does not recognize the hard drive at all (“disk management” is not available)
When the hard drive goes off, it makes a sound: “twirl” (magnetic head crashing), “beeping” (electrical jamming) or a total soundlessness (power failure)
The hard drive that fell, went into water, was a physical failure。
Focus: physical failure is the taboo of self-discovery! The inside of the hard drive is dustless, and as soon as you break it with a screwdriver, the dust in the air will stick to the disk, and there might have been saving data, and you're going to go straight to death. There was a friend who fell on the hard drive and couldn't read it, and he opened it up and said, "look what's in it," and the professional maintenance teacher said, "the disc is scratched, and it's hopeless."
Ii. Self-contained scenarios: 3 common logical failure maintenance steps
If the judgement is a logical failure, don't panic, the three approaches are tried step by step and 80 per cent of the minor problems can be solved。
2. 1 first step: to rule out “access problems” and not to let the “lines loose” go to waste
Sometimes the hard drive can't be read, it's not broken, it's “bad contact”. In particular, external hard drives (mobile hard drives, hard drive boxes), data lines, loose interfaces are common。
Desktops have hard drives inside: shut down the power, open the case, re-plug the sata line on the hard drive (the flat data line) and the power line, and plug it in as fast as you can。
Notebooks/mobile hard drives: a new data line (many of the original lines of the mobile hard drive are fragile and prone to break-ups), a new usb mouth (priorly plugged into the usb in the back of the computer, more stable power supply), or a new computer - sometimes not bad hard drive, is poorly exposed to the usb mouth of your computer。
The pit i stepped on myself: one time the moving hard drive suddenly turned off, three lines were useless and almost thought the hard drive was dead. Then it turned out that it was a hard drive box whose interface was loose
2. 2 step 2: fixing "file system error" with a system handheld tool
If the hard drive recognizes, but opens the hint “unable to access” “document or directory is damaged and unreadable”, the probability is that the file system (e. G. Ntfs, fat32) is in trouble. Windows and mac have their own repair tools, which are extremely simple。
Windows system: repaired with "chkdsk command"
Press win+r, enter cmd, right button " run as administrator " (must be admin, otherwise not authorized)
2. Input command: `chkdsk disc: /f ' (e. G., d drive loses `chkdsk d: /f ' ) press back
The system will indicate whether it is planned to check this volume at the next restart, enter " y " and restart the computer。
(mechanical: chkdsk scans bad sector and file system errors on hard drives and automatically fixes logical problems. The scan may be a little slow, patient, don't lose power
Mac system: repair with "disk tool"
Open the application " practical tools " " disk tool
Select your hard drive on the left side (note that it is not wrong and do not delete the disk)
Clicking on “first aid” will automatically scan the system for repair。
Alarm: if it is repaired or hinted to " format " , the other point " format " . Formatting emptys the data, looking down at the "data recovery" step。
2. 3 step 3: data recovery software to help you rescue important documents
If the hard drive can be identified, but the file is missing or damaged, don't rush to fix the hard drive. The data recovery software is a “life-saving straw” and is dominated by recuva (free version sufficient), easeus data recovery wizard (more fully functional, free version restoring 2gb), with similar operational steps:
1. Download installation software (under the official network, not under hooligan software)
Select the hard disk partition you want to restore by clicking on the "scan" (deep scanning, although slow, can find more files)
3. Check the files you want to restore in the results after the scan has been completed (see the preview of the document to ensure that it is open)
Select “restore” to save the file to another hard disk (do not return to the original hard disk and will overwhelm the data。
Case: my mother accidentally deleted the folder where her phone was connected to the computer and the photo was stored. After a deep scan of recuva, i found a picture three years ago -- and now she's saying, "this software is better than the fairy."。
Don't do it yourself. These physical problems have to be done by professionals
If there is a hard drive, do not hesitate to go directly to a professional maintenance facility (not just to find a booth in a computer town to find a qualified person):
3. 1 discs sound after transmission
(b) “photo”: the magnetic head (the “small arm” from which the data are read) is stuck on the disk, or the magnetic head is damaged, and it is possible to scrape the disc if the power continues
(b) “bum-bum” sound: electrics (parts of drive disks) are stuck and forced electricity burns the electrics
No sound at all: the power module is broken and the circuit boards need to be replaced。
These cases require operation in a dustless workshop, where the professional masters remove the hard drives, replace the corresponding parts (e. G., magnetic heads, electrics) or switch the discs to a new hard-drive。
3. 2 hard disks that have fallen and watered
Fragmentation can lead to magnetic head distortion, disc distortion, and water intrusion can corrosive circuit boards and internal parts. Even if it works for a while, it can be "twixt"-- – for example, it was possible to read after the fall, and in two days it was suddenly completely ignored, because the plate had been scratched slightly, the more it was used。
3. 3 computers completely fail to recognize hard drives
The exclusion of contact problems (the replacement of wires and computers has been tried) may have resulted in the breakdown of the hard drive circuit board or damage to the solid (the “system” of the hard drive). The restoration of the solids requires specialized tools that are not easily accessible to ordinary people; the circuit boards are broken and the same type of circuit boards need to be replaced (and the versions of the solids need to be matched, rather than simply changing boards)。
Iv. Pre-maintenance: data security is more important than fixing hard drives
Many of the hard drives are designed to “recover data”, but if they are not properly operated, they may be completely lost. Remember these three principles:
4. 1 don't repeat the test
The risk of data damage is increased by one point for every hard drive with a physical failure that is connected. For example, the hard drive where the magnetic head is stuck, the magnetic head may be “spreading” on the disk when it goes through, and the document that could have been restored would have been cut out。
4. 2 prioritize “restoration of data” and then consider “hard drive repair”
If there is significant data in the hard drive, even if the hard drive can be repaired, it is recommended that the data be restored by a professional body before the hard drive is repaired. Since data may be emptied during maintenance (e. G. Formatted, low) and the fixed hard drive is less stable than the new hard drive, it is not used as a "master disk"。
4. 3 development of a "back-up habit" in normal times, more than maintenance spectrum
To be honest, hard drive maintenance is “rehabilitation of the dead”, and the best solution is “don't lose the sheep”. Important data are backed up by at least two copies: one is local (e. G., another hard drive) and one is cloudy (e. G., webpad, nas). I've seen too many people cry, "there's only one picture of me and the dead old man" because there's no backup, and then the hard drive breaks and says, "this is the only picture that really avoids it."。
V. Guide to pit avoidance: how to avoid “sets” during repairs
Specialized institutions are used to fix hard drives and are the most vulnerable to “stealing parts” “discovery”. Remember these three points, don't go in a corner:
5. 1 question first “can data be restored” and then price
Formal institutions will test first and tell you what the “data recovery success rate” is, “about how much it is”, and it can be left unsatisfied (up to a maximum of a dozen to 100 tests). If the other side came up and said, “surely fix it, pay the 500 deposit first”, most of it a set road。
5. 2 signature of “data confidentiality agreement”
In particular, hard disks containing privacy documents (e. G., work data, personal photographs) must be signed by the maintenance party, under an agreement that “data will be used only for restoration, after restoration, to delete backups and not to be disclosed”。
5. 3 don't believe in “100% recovery” commitments
Even in professional institutions, there is no guarantee that 100 per cent of the data will be restored (e. G., serious scratching of discs and total damage to the magnetic head). If the other side says, "i'm sure we can get all the documents back," it's either not technology, or it's cheating on you。
The breakdown of the hard drive is a cause for concern, but most of the problems can be solved by understanding that “the type of failure will be determined first, then targeted, and the data safety threshold will be maintained”. And finally, the hard drive is priceless, the data is priceless, the usual backup is better than anything. It is hoped that this article will help you to cut the curve — after all, no one wants to experience another “hard drive strike” of an accelerated heartbeat。
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