If drive C is running out of space and there is unallocated space available on the disk, the best solution is to partition the unallocated space and extend drive C to include the new partition. This can be done without significant downtime and will immediately provide more space for the system.
* Partition the unallocated space (Answer E): This is the simplest and least disruptive method to increase the available space on drive C.
* Decreasing the page/swap file (Option A): This may free up some space but can negatively impact system performance.
* Reformatting (Option B): Reformatting would result in significant downtime and data loss, making it an impractical option.
* Whole disk encryption (Option C): This does not solve the issue of disk space.
* Enforcing disk quotas (Option D): Disk quotas manage space usage but won't free up space on drive C:
CompTIA Server+ Reference:This topic is covered under SK0-005 Objective 3.3: Troubleshoot common server problems.