An example of data backup on Windows in Zoom

I think most of the people who attend the Zoom seminar have a personal computer.

Do you have a good backup of your computer data?

If one day you suddenly lose access to the hard disk that stores important data such as photos, videos, and various documents.

Be sure to back up your data before it becomes scary.


Here, I will introduce the data backup method that I actually do.

I use a Windows PC as my main PC for work, so it’s a backup method on a Windows PC.

(Sorry for Mac users.)


First, the hard disk is divided into a C drive where Windows and software are installed and a G drive where data is stored .


There is no clear reason why the “G” is for data.

I sometimes use the D drive and E drive when inserting a DVD or mounting a virtual drive, and somehow I wanted to leave that area free.


There are three clear reasons to separate the drive where you install Windows or software from the drive where you store your data.

  1. Because the frequency with which backups should be taken is different
  2. Because the method of backing up is different
  3. Because the C drive uses a small-capacity SSD that can be accessed at high speed, and the G drive uses a large capacity HDD that is not as fast as the SSD.

C drive for Windows and software is not backed up very often.

In the unlikely event that your hard disk breaks, you can replace it with a new hard disk and reinstall Windows and software to restore it.

On the other hand, the G drive that stores data is a matter of life and death because if it becomes inaccessible, it will not be possible to work.

And since it is added, changed, and deleted frequently, I make a backup every time I use my computer, that is, almost every day.

What to prepare for data backup

If either drive breaks, get the same one to get it back in the fastest way and get back to work in the same environment.

  • SSD with the same capacity as SSD of C drive
  • HDD with the same capacity as the HDD of G drive

How to backup C drive

C drive containing Windows system etc. cannot be backed up by simple copy.

Use software that can copy the entire drive, or use a machine that can clone the hard disk.

This is the software I used before.

[Latest version] HD Revolution / CopyDrive_Ver.8_Normal version Hard disk SSD replacement Replacement Whole copy software Copy drive

Right now I’m using a machine that can clone SSDs and hard disks.

This is faster and easier.

Expert-oriented HDD stand PC-less clone / with complete data erasure function in HDD KURO-DACHI / CLONE + ERASE / U3

How to backup G drive

The G drive where the data is stored can be just a copy.

However, if you were copying the entire large hard disk, it would take hours to back up every day.

Therefore, we use convenient and free backup software that copies only the updated files and deletes the deleted files from the backup destination.

That is BunBackup.


Click here for the official website of Bun Backup.

The first time it copies all the data, so it takes several hours, but after the second time, only the changed files are copied, so the backup is completed in about 10 minutes.

It also has a function that shuts down Windows after backing up, so if you start the backup with BunBackup and leave it as it is, it will shut down Windows and turn off your computer.

It’s very easy because you just replace the operation of shutting down your computer every day with the operation of starting a backup with BunBackup .

Using Dropbox

I bring my laptop with me when I go on a business trip.

Therefore, work-related data on your main computer and laptop should always be in sync.

What makes this possible is something like a hard disk on the Internet called cloud storage.

I myself use the paid version of Dropbox, but it costs 1200 yen a month and 2TB is enough.

Of course, Dropbox also acts as a data backup.

If your data hard disk is corrupted, replace it with a new hard disk and download all the data in Dropbox.

Also, even if your main desktop computer breaks, the contents of your laptop’s hard disk are always synchronized with Dropbox, so you can continue working in the same environment as your desktop computer.


Here is a diagram of the actual configuration.



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