Couple of things of note in Speccy and one of them is a major issue, will get to them as they are shown in Speccy.
Power Profile
Active power scheme: High performance
Change the Windows Power Plan to Balanced, Ultra and High Performance are a form of overclocking that is known to cause stability and overheating issues and the setting should only be used for gaming type notebooks that have a discrete GPU that needs the extra power
Weird, Speccy is detecting four memory slots when there are only two
RAM
Memory slots
Total memory slots: 4
Used memory slots: 1
Free memory slots: 3
The RAM issue is a secondary concern atm and the below needs to be sorted asap
Partition 1
Partition ID: Disk #0, Partition #1
Disk Letter: C:
File System: NTFS
Volume Serial Number: 56EAB9BC
Size: 931 GB
Used Space: 931 GB (100%)
Free Space: 0 B (0%)
For Windows to be able to run efficiently and to be able to update, on a mechanical HDD you need to have between 20 and 25% of the partition or drive available as free storage space at all times and on an SSD between 10 and 20%, if you don`t you risk Windows becoming corrupt or not being able to update which also puts you at risk of malware attack.
Data only storage devices should not be allowed to get any lower than 10% of free storage space of the full capacity of the drive/partition on the drive, this also to avoid data corruption.
Please note that storage devices can physically fail if the amount of free storage space is allowed to drop below the required 10 or 20/25% minimum.
Uninstall as many unused programs, games, videos and music files as you can and get yourself another means of backing up to, post back when you have between 25 and 30% free storage on the C: drive/partition and we can go from there.