It happens that several operating systems are installed on one computer. Often several operating systems are installed in order to expand the possibilities of using the software. For example, not every program that runs on Windows XP will run on Windows 7. It's the same with video games. Some "old" video games do not run on the Windows 7 operating system. But if the need to use several operating systems at the same time is no longer needed, unnecessary OCs can be removed.
It is necessary
Windows computer
Instructions
Step 1
Click on the "My Computer" icon with the right mouse button and select "Properties" from the menu that appears. Then click on the "Additional parameters" tab and in the window that appears, find the line "Startup and recovery". Next to this line, click "Options". Now find the inscription "Operating system loaded by default". Below the inscription there is an arrow. Click on it with the left mouse button. Select the one you will use from the list of operating systems. Below is the line "Display a list of operating systems". Uncheck this line. Close all windows.
Step 2
Reboot your computer. Now, when you turn on the PC, there will be no operating system selection window. When the OS boots up, open the hard disk partition where the unnecessary operating systems are located and delete their files. Usually the folders of the old OS are named Windows.old or Windows. 2. Files of an unnecessary operating system should be deleted as normal folders and files.
Step 3
You can also format a disk partition that has an unnecessary operating system installed. Of course, this should be done in the event that you do not have a working operating system installed on the same hard disk partition at the same time. If there is no operating OS in the hard disk partition, then formatting will be the fastest and best option. Before formatting, do not forget to temporarily transfer the files you need to another partition on the hard disk.
Step 4
If you come across Temp folders, they also need to be deleted, since they store temporary operating system files. By deleting all folders with this name, you free up space on your computer's hard drive.
Step 5
Also, find a file called Pagefile among the files of the unnecessary operating system and delete it. This is the operating system paging file. Since this OS will no longer work, you will not need it.