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How to remove bad sector from hard disk permanently? This question may pop up. This article will answer the questions by introducing the two kinds of bad sectors - namely logical bad sector and physical bad sector.
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Bad Sectors
In computing, bad sector refers to a disk sector on a disk storage unit that is permanently damaged. When our hard drives have bad sectors, these sectors won’t respond to read or write request. In other words, the data cannot be saved on such sectors, and all information stored on them will be lost. What’s worse, rapidly developing bad sectors can certainly suggest oncoming hard drive failure.
Symptoms Indicating Bad Sectors
If you encounter the following symptoms when you use your computer, you should pay attention to whether the hard disk has bad sectors.
- The sound caused by normal friction of the hard disk suddenly becomes strange.
- The system cannot be started normally when the virus infection has been excluded, and the message “Sector not found” or “General error in reading drive C” appears.
- When the disk formatting cannot go smoothly, and finally get an error.
- Scandisk (a diagnostic utility) automatically runs every time the system is booted.
- When you use the fdisk command to partition hard disk (you can click here to learn how to partition the hard disk easily and reasonably), but the execution will become randomly to a certain process.
If any of the above errors is present, you need to be extra careful because your hard drive has bad sectors. To diagnose the bad sectors, you can use the third-party software MiniTool Partition Wizard.
Logical Bad Sectors
Logical bad sectors are also called as soft bad sectors. When there are some logical bad sectors on the hard disk, these sectors become inaccessible to disk controller software or operating system.
Improper use or operation of the software can also lead to logical bad sectors. For such sectors, it is possible to mark them or fix them by reformatting the hard drive to repair them.
The following states how to do bad sector repair.
Step 1: Scan Disk to Mark the Bad Sector
You can carry out the following operations to mark the bad sectors. Here I take Windows 10 for example.
Method 1: using the error checking tool
- Open a File Explorer window by pressing the Windows icon and the E key on the keyboard.
- In this File Explorer window, click This PC in the left navigation pane.
- Right-click on the drive you want to scan in the Devices and Drives section on the right side of the window, and then click the Properties
- In the Properties window, move to the Tools Under Error checking, click the Check button.
- In the Error checking, please click Scan drive.
Depending on your system, the scan can take anywhere between 15 minutes and a few hours.
Method 2: Run SFC (System File Checker) to scan the hard disk
SFC is a command line tool that scans for corrupted files and resources on the system.
Follow the listed operations to scan your hard drive with SFC.
- Type Command Prompt in the Cortana’s search box and open the search result.
- At the Command Prompt window, please type sfc/scannowand hit the Enter key on the keyboard.
Since this step can only help you mark the detected bad sectors so that the operating system can’t access these zones, you need to carry out the following operations to fix bad sectors.
Step 2: Data Recovery for Logical Bad Sectors
As mentioned, the data saved on logical bad sectors is lost. For this situation, please don’t worry, as the following content shows you how to use the Data Recovery feature of MiniTool Partition Wizard to restore the lost data from the logical bad sectors.
Here are the steps about recovering lost data with MiniTool Partition Wizard.
1. Launch MiniTool Partition Wizard to get its main interface again.
2. Please click the Data Recovery feature on the top Tool Bar.
3. After clicking the feature, you will get a new interface where all the detected partitions are listed. Select the partition from which you want to recover the lost data, and then click the Scan Here I take partition D as an example.
4. Wait for the feature scanning. After completing the scan, please check the files you need, and click the Save.
5. Finally, please choose a directory to save the checked files.
After recovering the lost data, please back up the data saved on the hard disk, for you are required to format the hard disk in the following steps to complete bad sector repair.
Step 3: Format the Hard Disk with MiniTool Partition Wizard
In this situation, it is recommended to use MiniTool Partition Wizard to achieve the logicalbad sector repair by formatting the hard drive.
Here are the steps for formatting the hard drive.
1. Launch MiniTool Partition Wizard to get its main interface.
2. In the Disk Map, choose the partition you want to format, and then choose the Format Partitionfeature from the left panel. Or right-click the partition and then choose the Format
3. Once you get the Format Partition window, please set partition label, file system and cluster size for the selected partition according to your own situation and then click the OK
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4. After going back to the main interface, please click the Apply button to complete these changes.
Step 4: Run SFC again to check the bad sectors
If you finished all the three steps, but there are still some bad sectors, which means that these sectors are physical bad sectors. If there is no, it means the marked sectors are logical bad sectors. You can try to write some data in the formatted partition.
Physical Bad Sectors
In contrast to logical bad sectors, there are only a few chances that your hard drive will develop physical bad sectors. If there are some physical bad sectors or hard bad sectors in the hard disk, neither OS or disk controller can access them nor any type of read and write operations can be performed.
In general, the physical bad sectors are caused by impact or sudden power failure during the use of the hard disk. As we know, the two main types oft he hard drive are HDD and SSD. The cause of physical bad sectors is a little different for these two types of hard disks.
On a traditional hard drive, there are many possibilities for physical bad sectors. The hard drive may have a manufacturing error and natural ware; the hard drive may have been dropped, causing the hard drive’s head to touch the platter and damage some of sectors. Or some air may have entered the sealed area of the hard drive and the dust may have damaged the drive.
Therefore, when there are some physical bad sectors on your hard drive, it means that it ends its life. In this situation, it is recommended to buy a new hard drive for your computer, recover the data from the hard disk with physical bad sectors, and back up all the data from the hard disk to the new one.
Attention to Hard Disk Usage
In order to avoid losses due to bad sectors, you should pay attention to the following precautions.
- Carry out the hard disk health test every 6 months.
- Regularly make a backup for the data saved.
- Regularly clean the computer.
- Avoid sudden power outrage.
Bottom Line
The two kinds of bad sectors that are logical bad sector and physical bad sector have been introduced in this article.
After reading, you may have some questions about bad sectors or the solutions to the logical bad sector repair mentioned in this article, and you can contact us via [email protected] or leave your message following this article.
Bad Sector Repair FAQ
Depending on who you ask, value stocks are set to soar….or dead as a doornail. Value’s tub-thumpers say growth stocks’ decade-plus dominance can’t endure—particularly with value’s penchant for zooming early in bull markets. Disbelievers argue Big Tech’s supremacy alongside private equity and indexing’s rise seal value’s casket. Wrong and wrong. Value isn’t dead. But the 2020 bear market’s peculiarities make a near-term comeback unlikely. Here’s why.
This winter’s downturn struck lightning-quick—highly unusual for any bear market. They typically start with a whimper, not a bang. Relatively gradual early declines fool greater-fool investors into holding on or buying more—thinking it’s their opportunity to “get in and buy the break.” Later the real sharp plunge happens, whacking late-stage buyers. Not this time. The 2020 bear market struck with the economy on solid footing, corporate profits climbing after last year’s brief “earnings recession” and no real euphoria--that typically dooms bull markets. But when governments suddenly locked down economies to stem the coronavirus’s spread, stocks had to urgently pre-price recession uber-fast. World stocks plunged from all-time highs to bear market territory in 20 trading days—record time. While its magnitude (-34% peak to trough) and fundamental cause made the downturn a bear market by definition, the sudden, panicky plunge functioned more like an oversized bull market correction.
These correction-like features put value out of favor. They distort the credit cycle that fuels value’s usual early bear market outperformance. Typically, as economies surpass prior heights, central banks shift focus. Corralling inflation—not fostering growth—becomes their focus. They tighten monetary policy but inevitably overshoot. Short-term interest rates surpass long rates, inverting the yield curve. Banks—which profit by borrowing short term, lending long term and pocketing the spread—lose incentive to lend much. That tighter resultant credit signals economic contraction ahead. Stocks begin pre-pricing that recession, and a bear market slowly starts grinding lower.
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Small value firms—lower quality and typically much more leveraged and higher credit risks than bigger, growth-oriented stocks—get clobbered as that downturn wears on. Banks won’t lend to them—too much risk for too little reward. Instead, they call loans back. Painful months pass. Prior to 2020, post-World War II US recessions averaged about a year, about half longer. Shares plummet as fears mushroom over small value firms’ very survival. Some do fail.But eventually and inevitably, panic causes stocks to overshoot to the downside. Expectations fall too far. Central banks correct course, cutting short rates—usually by more than market-set long-rates fall, steepening the yield curve. Markets then anticipate wider credit spreads spurring lenders to warm to riskier firms. Deeply depressed small value stocks surge after months of misery on expectations of a credit lifeline.
Not this time. While the US yield curve flirted with inversion in 2019, it wasn’t because the Fed raised rates to quell inflation. Instead, long rates sank. Besides, the inversions were tiny—and likely offset by banks’ ability to borrow abroad even more cheaply. Banks’ huge cash stockpiles further put a lid on customer deposit competition, so lenders’ actual funding costs sat well below short rates. No big lending contraction came.
Instead, economic shutdowns meant to slow COVID-19’s spread triggered the recession and bear market. The downturn’s correction-like speed meant small value stocks didn’t suffer the sustained beating that typically tees up their early bull market surge—and current conditions bode ill for them zooming any time soon. From this year’s March 23 low through August 31, global small value’s 51.3% return slightly trails the world’s 54.5% and lags far behind global large-cap growth’s 67.6%. Why? Partly because central banks’ massive quantitative easing programs depress long rates, flattening the yield curve and preventing the bank based credit boost value firms need…..to trigger stock market outperformance on any sustained basis.
Then, too, other factors conspire against value stocks now. In my July 10 column, I noted the turbulence facing the small-cap-dominated Airline industry. Tight credit spreads also weigh on profits of Banks and many other Financials—classic value plays. Oil supply gluts limit upside for the value-heavy Energy sector. Tight credit makes small oil and gas firms particularly vulnerable.
With short rates pinned low, a meaningful credit boost requires strong inflation to juice long rates—not likely anytime soon. The money supply surged after the Fed’s moves this winter, but velocity—the rate at which money actually changes hands—plummeted. Absent a big boost in velocity, the inflation needed to lift long rates and spark a credit kick-start won’t come.
Remember: Value and growth leadership doesn’t change because one style is “due.” Nothing is ever “due.” Nor does one or the other “die” from being out of favor. Growth/value leadership shifts when fundamental drivers impacting companies’ outlooks change materially. Understanding that value stocks are unlikely to soar without a big credit boost gives you an advantage over those who see an imminent rebound—and those who think one will never come.