If ever default windows OS pa ng pc/laptop manufacturer naka-install, you can restore it to factory settings by choosing "Keep my files options."
1. Restart PC/laptop
2. hit appropriate F key or key combination para lumabas yung restore to factory setting options. Example po,
Acer – Alt + F10
Asus – F9
Dell/Alienware – F8
HP – F11
Lenovo – F11
MSI – F3
Samsung – F4
Sony – F10
Toshiba – 0 (not numpad) while turning on, release key when Toshiba logo appears
3. Lalabas yung prompt regarding factory reset, just choose "Keep my files" option.
4. Follow mo lang yung susunod na mga prompts. Factory reset usually takes 30mins-1hour.
If ever hindi na ung default OS:
1. Plug in your bootable USB/CD.
2. Go to BIOS Setting and change boot order. Place bootable USB/CD to first order.
3. Save settings.
4. Follow the prompts when it comes up until you reach the page where it shows your formatted drives (i.e., Drive C and Drive D)
5. Delete partition C
6. Create new partition
7. Format
NOTE: Please back the files first as what sir
jomelyoww mentioned. For detailed step by step, madami sa net. You can do google search or search mo din sa YøùTùbé.
Thanks.