TIP: Alternatively, you can type chkdsk X: /F /X /R for rigorous scanning and repair. Type the command chkdsk X: /f where X is the external hard drive partition letter.Right-click on ‘ Command Prompt’ and select ‘ Run as Administrator’.You can follow these steps to repair your inaccessible external hard drive: If none of these solutions work, please refer to ‘Optimal Solution’ given at the end of this post which works in most cases and can help you successfully recover your important data.Ĭhkdsk is an inbuilt hard drive error checking and repair utility in Windows, which is used to scan hard drive (& its partitions) for logical file system error, bad sectors, & file system metadata, due to which hard drive becomes inaccessible, and fixes these errors in the hard drive simultaneously. However, in the absence of any backup you still have few options with which you can try to repair the external hard drive and fix parameter is incorrect error. If you have a backup, you can use that to restore your files after formatting the faulty hard drive.

There are few possible causes that might be responsible for this error

Drive becomes inaccessible: The entire external hard drive or storage media becomes inaccessible and so does the data inside it.They can access the drive but cannot access the data. Cannot copy files: Due to this error, the user fails to transfer files from the external hard drive to any other location on the system.

The “parameter is incorrect” leads to two major issues

There are few possible causes that might be responsible for this error.

The “parameter is incorrect” leads to two major issues.

Hard disk power on time incorrect