###### tags: `clean` `windows`
# How to clean up data in computer ?
The article is mainly on windows and still keep update (if i find other better ways). Since size of memory is fixed, as a developer, I think that it's important to have sense of keeping computer clean and to have high performance for work.
#### Outline :
1. Delete
2. Clean temp file
3. Some tips
## :dart:1. Delete
**Here are some methods if you try to delete or remove something but don't work. If you just want to clear your computer, just jumpt to [2.Clean-temp-file](#2-Clean-temp-file)**
### Method (1) Check if the application or file being used
- check if you're still using that file, close it if yes and deletion may work
- How to know I'm using that file
- press `ctrl` + `shift` +`esc`
- open task manager : just turn off the file or application you want to delete

### Method (2) Use command line
I think this method works efficiently for those situation that just can't find out why cannot delete the file :)
- How to use cmd?
- press `windows` + `R` and type ==cmd==
- see what's in directory : type `dir`
- go to directory : type `cd [test_directory]`
- go back last directory : type `cd ..`

- delete the file : type `del [file name]`
- delete the directory : type `rmdir [directory name]`
- there's a director named **test** in C:\Users\i5-VivoB\test_directory
- delete directory **test** : type `rmdir test`
- then type `dir` see if successful :)

### :warning:Method (3) Create .bat file to do it:warning:
**:warning: Use this method if method(1) and method (2) don't work
:warning: I do not recommend this method in common situation because it's really dangerous if delete the wrong file.
:warning: There guys may say just press `ctrl`+`z` to recover it. The problem is that this file will delete it forever that even `ctrl`+`z` can't help to recover.
:warning: Therefore, make sure which is target file if you use this method.**
- Create a ==.text== file, name it whatever. And type these in it

    DEL F A Q %1

    RD S Q %1

- Save it as .bat file
- :warning:Delete file : just drag the file you want to delete to .bat file (here filename is file_del.bat) created just now
- and the file just disappear forever :warning: even `ctrl`+`z` don't work to recover it
- I recommend to put it in a directory to avoid drag file on it by mistake. Or just delete it if there's no need of it.

## :dart:2. Clean temp file
- press `windows`+`R` and type `%tmp%`
- You'll see files in this directory. These are temporary files created by system and have no impact or use for user.
- Just select all(`ctrl`+`A`) file and delete

## :dart:3. Some tips
:four_leaf_clover:These are some tips that I delete file. Welcome to have a look :four_leaf_clover:
- Simplest : clean trash can
make sure you don't need files in trash can and just remove them since they also occupy the memory of your computer
- Delete **.exe** file
- :heavy_check_mark:After installing the application, actually there's no need of .exe file. Therefore, I prefer to remove it.
- :negative_squared_cross_mark:If you did put it in ==environment variable==, then don't remove it!
- Check **Downloads** regularly
- Well, just clean files in it
- To have a good management of large amount of files, I prefer to categorize files into specific directory instead of leaving them in **Downloads**

## Reference
:paperclip:[【逐步教學】在Windows電腦強制刪除檔案的6個有效方法](https://tw.imyfone.com/pc-tips/how-to-force-delete-a-file/?gclid=Cj0KCQjw48OaBhDWARIsAMd966C_-FPgD3coKu6HmimVVtrjR4NMb-chqy6h5evYzA_0NcuvQdr23owaAquZEALw_wcB)
:paperclip: [dare not remove files?](https://www.youtube.com/watch?v=UGbJEAhrVWg&list=LL&index=12)