It happens that one operating system is not enough for normal operation. In this case, as a rule, several operating systems are installed. This is useful when you need to work with old programs that will be problematic to run on newer operating systems. After the second OS is installed, the question arises, how to choose the one you need?
It is necessary
A computer with two operating systems
Instructions
Step 1
After you have installed the second operating system, turn on the computer. When the system boots, a dialog box should appear in which there will be a list of operating systems that are installed on the computer's hard drive.
Step 2
Using the arrows on your keyboard, select the operating system that you need at the moment and press Enter. After that, the OS you have chosen will boot in normal mode.
Step 3
If the dialog box in which you could select the operating system did not appear, but simply booted one of the OS, you need to enter some settings. To do this, right-click on the "My Computer" icon and select "Properties" in the context menu. In the next window, click on "Advanced system settings".
Step 4
Then, in the "Advanced" tab, find the section called "Startup and Recovery" and select "Options" in it. Find the item "Display a list of operating systems" and check it. Then click OK. In the next window, also click OK.
Step 5
Reboot your computer. Now the dialog box where you can select the operating system will appear exactly.
Step 6
If you have two hard drives installed in your computer, and each has an OS installed, the operating system selection window may not appear. In this case, you can select the OS by selecting the hard disk in which the required operating system is installed.
Step 7
Turn on the computer and immediately after that press the Del key several times. This will take you to the BIOS of your computer. Now use the arrows on your keyboard to select the boot device priority section. In this section, on the number "1" put the hard disk with the operating system you need at the moment. Save the settings. The computer will reboot and start from the hard drive of your choice with the desired OS.
