Hii
This situation could be a software issue, such as an app or update.
I recommend you do the following: type the command diskcleanup in the search bar and click OK. Select the C drive > Select the "Clean up system files" option > tick all options except the "Downloads" folder and click "OK".
Use PC Manager to perform disk checks in addition to TreeSize.
https://apps.microsoft.com/detail/9pm860492szd?hl=pt-BR&gl=AO
Then, download the Treesize app from the link below and run it as an administrator. Select the C drive option and wait for it to finish loading. It will show you where spaces (application names) exist, enter the folder or file name here.
https://apps.microsoft.com/detail/xp9m26rsclnt88?hl=zh-CN&gl=CN
Be careful when deleting folders in TreeSize; I can instruct you if you wish.
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Thanks