After
deleting partition containing Ubuntu OS your pc will not start and it will show
error message like “Operating System Could Not Found”. So in this situation you
have to open command prompt anyhow and type following command in cmd.
1.
>bootrec.exe /fixmbr
2.
>bootrec.exe /fixboot
3.
>exit
Now
restart your pc. And if your pc shows same message on start-up then again open
cmd and type following commands.
i.
diskpart
ii.
list disk
iii.
select disk 0
iv.
list partition
v.
select partition 2 (type 2 If your system drive (drive
containing windows installation) is 2)
vi.
active
vii.
exit
It
is sure this time your pc window will start normally…