How to fix the USB when it lost space

Sometimes, there is not much things in your usb. And it shows that there is no much space left in your usb.  Your USB lost space. But it can be fixed.

First move the things in your USB to another place. The steps here will make things in USB lost.

In a windows environment, follow the steps

1. In the start menu, search for and launch diskpart.
2. Type list disk to see all current disk volumes on your system,
3. Plug in the USB and type list disk. Note the newly listed volume, that's your USB's.
4. Type select disk#, where # is your USB's volume number.
5. Type Clean to wipe the volume of alll partitions.
6. Type create partition primary to make a new partition with all unallocated space.
7. type exit to finish.

When I tried to fix my USB, I tried steps 4,5 twice. It did not work at the first time.

When I tried to use my USB, it showed that I need to format the USB. And I formatted the USB. It got back to normal.

Using ubuntu, and sometimes it freezes and crashes, how I fixed it

One my operation systems is ubuntu.
sometimes it freezes and crashes.
And I found that most of the time, the browsers freeze. I used firefox and chrome.
And I look for some other browsers. And I found opera and chromium.
I tried to install opera.
I downloaded opera deb file. And tried to install deb.
I tried the command first:

sudo apt install ...deb

not working

Then I tried sudo dpkg -i xxx.deb

works.



finally installed opera. now it seems no crashes or freezes

Opera seems stable. But it does not support some videos.

To install chromium, I used
sudo apt install -y chromium-browser

And I installed it. chromium seems not so stable as opera.