How to keep your computer running fast and smoothly


To save storage space for system, you need to delete 5 files and folders in any Windows version of your computer, from Windows 7 – Windows 10.

Most of popular computer users will prefer to use tools such as CCleaner, TuneUp, etc. to delete files on the computer automatically. However, this method is very dangerous as a result of its risk because these are fully automatic working software, the owner of the software is also not sure that whether or not it accidentally deletes important files or data on your computer? Therefore, we recommend that you should delete the redundant files on your computer by manual actions.

In today article, will guide you how to remove 5 unnecessary files and folders in Windows to regain considerable storage space for the system, let’s follow these following steps:


If you regularly use Hibernation mode in Windows and probably you do not know that Hibernation uses the “hiberfil.sys” file to store the current working state so that the user can return to work one quickly after turning on the computer and exit Hibernation mode.

Due to the “work nature”, hiberfil.sys usually has a very large capacity (up to several GB or more depending on the size of the hard drive) and occupies a lot of storage space. If you do not use Hibernation mode and want to disable it to save storage space, you can do as follows:

Right click Start and choose Command Prompt (Admin).

When the Command Prompt window appears, type this command “powercfg.exe /hibernate off” and press ENTER to activate.

When run this command, Windows will automatically disable Hibernation as well as hiberfil.sys file. Notice that, the disablement of Hibernation will also remove Fast Startup function in Windows, you should consider carefully before doing.


Temp is the directory containing some temporary data. For example, when you install a software from the * .msi file, the internal data can be extracted to the Temp folder. In addition, when browsing the web, if you choose to open only for a pre-view, the data will be downloaded here as default. However, after use, the data is not deleted causing a waste of hard drive space. Therefore, if you want to delete all the “junk” data in Temp, you can do the following steps:

Turn on File Explorer and type key word “%temp%” into address bar.

Then, press “ENTER”. At that time, Windows will list all the junk data related to the keyword you entered.

After that, press the key combination Ctrl + A to select all and Delete them.

Notice: During the deletion there are some files cannot be deleted, so you can ignore these items.


The Recycle Bin is not a folder or a file, simply, when you delete one or more files or folders, the system will “transfer” them to the Recycle Bin. This is the special“place” that “helps”to save the deleted data until you permanently delete them or restore them when you need. However, you will probably “forget” the existence of the Recycle Bin on the desktop and may be it is “containing” GBs of old data.

Open Recycle Bin and delete all stored data there, in the case that you have not deleted for a long time you should open it and wait about 3-5 minutesto make sure all the data are shown off, then delete.


After upgrading process to Windows 10 from a version of previous operating system, your computer does not actually delete old resources; instead, it moves all of them to the Windows.old folder, and then proceeds and installs a new folder for the new version of Windows.

Therefore, depending on the size of the previous version of Windows, this folder will take up a lot of or little space on the computer’s hard drive.

If you do not have any problem with occupying the capacity of Windows.old, then you do not need to do anything, the system will automatically delete this folder one month after upgrading to Windows 10. However, if you are needing storage space, you can follow the steps below to delete Windows.old without having to wait for a month.

Notice: In case of wanting to downgrade from Windows 10 to the previous version, do not delete this folder.

Type the key word “Cleanup” into Cortana and click “Disk Clean-up”.

In Disk Clean-up box: Driver Selection appears, remain option and press “OK”.

Wait few seconds for tool carries out system scanning. After that, when “Disk Clean-up for (C):” boxappears, press “Clean up system files”.

Continuously press “OK”.

Wait some seconds, the box “Disk Clean-up for (C):” appears once again. At that time, tick the option “Previous Windows installation(s)” in option list of Files to Delete.

Finally, press “OK” and the system will automatically remove “Windows.old”. The work is done.


When installing any application in Windows, besides installation files located in folders there will also be a number of registry keys created inside the system. Of course, these registry keys are not always deleted at the times when the user removes the application.

Over time, because the locks of applications that have been removed due to not being deleted, the entire registry of your system will become cluttered and overwhelmed, causing slowly running for your computer. As soon as you know this, you will probably want to delete them. And the simple deletionis:

Turn on Registry Editor and look for the path “HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run”. Proceed to re-examine the inside locks to know whether or not the keys corresponding to the previously deleted software still exists, right-click, and select Delete.

Next, move to “HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run” and do the same.

So you have done the steps making your computer run fast and smoothly, thank you for reading and following this instruction article, please rate 5 stars at the end of the article and share with your friends if it is helpful. See you in the next articles!

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How to keep your computer running fast and smoothly
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