As it is; unchanged — staying in the current state. Can also mean 'at this rate' with a negative implication.
このまま帰ってもいいですか？
Is it okay if I leave like this?
このままでは期日に間に合わない。
At this rate, we won't meet the deadline.
パソコンはこのまま使っても問題ない。
You can continue using the computer as it is without problems.