Go to start and search for disk management
(ensure you select settings from the drop down).
Right click on the System partition and select Shrink
. Enter the amount you want to shrink by 1024MB = 1TB.
Right click the unallocated
partition you've just made and select new simple volume
Then run through the wizard - leaving the default values will suffice.
- Do not right click that partition and select mark as active. Do not do anything else once you've created the partition with a drive letter. You run the risk of breaking your OS.
Sometimes when my internet is down I forget the rest of my computer works.
PS - I'm from GMT time zone.