Windows 10: Keep on randomly losing space on my C drive

So recently I cleared up around 30 GB of space on my c drive and which is a lot for me as I had around 9GB before. But I've been noticing that I just randomly lose space without even downloading anything. I would notice it while browsing through my computer and I would see I would lose around 100-500 MB of storage but today when I logged onto my computer I had lost around 10 GB of storage overnight. I haven't downloaded anything and usually don't because my C drive only has only around 128 Gb of storage. if someone could please help me I would appreciate it.

:)

 

C: drive progressively loses space

Hello,

My C: drive is progressively losing space the longer my computer is on. I am currently experiencing the worst example of it so far, which has prompted me to post this support request.

• Three hours ago, I turned my computer on. C: had 32GB of free space.
• Thirty minutes ago, I received a 'low disk space' warning. C: had been reduced to 0 bytes.
• I moved 3.6GB of personal files to an external drive. After checking in 'This PC', however, C: showed just 2.2GB of free space.
• At the time of writing, C: now has 1.3GB of space remaining. This will occasionally drop in increments of 50MB to 100MB. It will also sometimes stabilise for a short time before continuing to drop again.

The only programs I have used in the past three hours are Chrome, Firefox, Foxtel Go (a streaming application), and Media Player Classic. It does not seem to matter which applications I use - if I use any applications at all - for the space to continue disappearing. Malwarebytes has not discovered any threats, either, and nothing appears to be abnormal in Task Manager.

How can I figure out what is going on? Can anyone help, or suggest anything? This is incredibly frustrating and inconveniencing as you can imagine.

Thank you in advance.

Computer: Toshiba Satellite
Processor: Intel Core i7-4700MQ CPU @ 2.40GHz
System type: 64-bit operating system, x64-based processor
Operating system: Windows 10 Pro

 

Unallocated Space to C Drive

Thanks

 

Unallocated Space to C Drive

Hi Travis,

It appears that a disk partition was created but was never assigned its allocation. Assuming there are no files stored in the unallocated partition, perform these steps to combine it with your C: drive:

• In Disk Management, right-click on (C which appears next to the
  Unallocated partition.
  
• Select Extend.

Let us know if you're able to combine the spaces after following the steps above.

Regards.