Windows 10: C drive from 280 GB is decreased to 250-out of memory

Ηello.I have update win11 to 24 H2 since december of 2023.I have two issues:Since december of 2023 the internal ssd drive drop from 280 Gb to 250 Gb.The page file*virtual meory was then 34 Gb!!!!.After several months become 12 gb and now is 6gb.Why after 15 months the c drive is between 240-250 gb and it does not reach capacity levels 280 gb it had at the end of 2023?''Where are these missing'' 30 gb?I use the ssd for the OS and the installation of the updates of my programs.Not for saving and download stuffs.....The number of programs i

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my drive c have 250 gb but my drive d only have 1 gb and is totally nothing

my drive c have 250 gb but my drive d only have 1 gb and is totally nothing

 

c drive space decrease

Hello,

This behavior can occur when System Restore is turned on on your computer. System Restore uses a portion of the hard disk to store "restore points." These restore points are used by System Restore to return your computer to an earlier state.

System Restore creates a new restore point each time that you start the computer.

We suggest following advised steps to resolve issue in our support page regarding sorting

C drive space decrease.

Update us with the outcome.

Regards.

 

reduction of C drive capacity

Ηello.I use the last month O&O defrag 27.I have noticed that the disk(ssd C drive) capacity fluctuates.normally is about 280 gb.I noticed that one day was reduced to 250 GB for example.the next day increased several GB.For example the capacity became 270 GB e.t.c. I do not downlaod anything to my C drive except when installing any software ,it’s instalaltionfolder e.t.c.All other files/media I save them to my internal hdd.Why the C drive has these ups and down?I do not remember something like that with v25 and i am not sure if it happens with v26.Due to defragmentation of v27?Due to this new setting.intensive optimize?

I noticed (I am not 100% sure) that the capacity decrease after (daily: or weekly?) defragmentation.

From O&O support told me that are some temporay files called oodssdtrimtemp, that cretaed with trim optimization and that ussually are deleted by self or after restarting.But the lost month my capacity is 240 GB(from 280 Gb ) without installing everything.Also i do not know where may by are theset temp files for delete manually.Any solution please?Is there any possibility to be another reason about reduction in disk capacity by 40 GB?