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An XDA Developers writer says a series of Windows storage changes and targeted file cleanup recovered dozens of gigabytes from a C: drive of just over 200GB. The steps included directing new apps to another partition, removing selected files that were no longer needed, and configuring Storage Sense for regular cleanup.
An XDA Developers writer reports recovering dozens of gigabytes from a Windows C: drive by changing where new apps are saved, moving some existing programs, and removing selected files. The account highlights how default Windows settings and overlooked system files can contribute to a small system partition filling up, while also noting that cleanup choices such as deleting a pagefile can affect performance.
The writer had 2TB of SSD storage across the PC but reserved most of it for games, leaving the C: system partition at just over 200GB. They said the drive repeatedly ran low on free space every few months. One cause was the default app installation location: new applications were being saved to C: unless the install location was changed.
To redirect future installations, the writer changed the setting under Settings > Storage > Advanced storage settings > Where new content is saved, selecting the F: drive for new apps. Previously installed programs did not move automatically, so the writer uninstalled and reinstalled several non-Microsoft Store apps on another partition. The report says that step alone freed dozens of gigabytes. It also points to changing the default Downloads folder as a way to keep large downloads off the system drive.
A scan with WizTree identified several large files and folders on the writer’s C: drive. The report says disabling hibernation again removed a nearly 13GB hiberfil.sys file, deleting an NVIDIA DXCache folder recovered about 8GB, and removing a 4GB file from LiveKernelReports returned another 4GB. The writer left a 12.5GB pagefile in place, describing it as important to system performance.
Windows storage · A first-person case study
My C: Drive Kept Running Out of Space
A Windows user reclaimed dozens of gigabytes by redirecting app installs, moving selected programs, and finding large files. The lasting fix combined targeted cleanup with better storage habits.
01 / Why space ran out
Total storage can hide a small C: drive
The PC had plenty of SSD capacity overall, but most was reserved for games. Windows continued to fill the system partition because new apps defaulted to C:, while other large files accumulated out of sight.
Apps kept landing on C:
New applications used the system drive unless the install location was changed. Existing programs did not move when the default changed.
Large files went unnoticed
A WizTree scan surfaced cache, hibernation, and diagnostic files that routine cleanup may not reveal.
Free space elsewhere did not help
Unused capacity on another partition did not prevent C: from running low every few months.
02 / The cleanup findings
Target files carefully; keep what the system needs
These figures are observations from one PC. Cache sizes and system files vary, and some deleted data may be rebuilt later.
Disabling hibernation removed the hiberfil.sys file on this machine.
Deleting the NVIDIA DXCache folder recovered space; games may rebuild shader data.
Removing one file from LiveKernelReports returned another 4 GB.
Pagefile left intact: The writer kept the 12.5 GB pagefile, calling it important for smooth system performance. Do not remove system files just because they are large; identify their purpose first.
03 / Build a repeatable routine
Keep future growth off the system partition
A practical sequence: redirect new storage, relocate selected existing apps, then review what is consuming space before deleting anything.
Change app destination
Open Settings → Storage → Advanced storage settings → Where new content is saved. Select another drive for new apps.
Move selected programs
For apps that do not move automatically, uninstall and reinstall them on another partition where appropriate.
Redirect Downloads
Change the default Downloads folder to keep large files from accumulating on C:.
Review Storage Sense
Set a cleanup schedule and inspect rules for temporary files, Recycle Bin, and Downloads.
04 / What to take away
Useful case study, not a guaranteed savings plan
Check your own drive
- Review the Windows storage breakdown and default save locations.
- Use a disk-usage tool to locate large folders, then identify each item before removal.
- Expect file sizes and settings menus to vary by PC and Windows version.
Use automation with care
- Storage Sense can clear temporary files and apply chosen Recycle Bin and Downloads rules.
- Choose daily, weekly, or monthly cleanup only after reviewing what personal files may be deleted.
- The report offers no measured total for all recovered space and no results across other computers.
05 / The writer’s perspective
Small changes made the difference
“I had unknowingly accumulated several programs on the C: drive that could just as easily have been installed somewhere else.”
— XDA Developers writer
Why Small System Drives Fill Up
A nearly full C: drive can leave less room for Windows, application updates, temporary files and other routine system activity. This account matters to readers who have plenty of total storage but have assigned only a limited amount to the Windows partition: unused capacity on another drive does not automatically prevent C: from filling.
The reported fixes address both future storage growth and files already occupying space. Redirecting new apps can reduce repeated accumulation, while checking large files can reveal space that routine cleanup may not reclaim. The examples are specific to one PC, however; the sizes of cache folders and system files vary by device and use.
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The Writer’s Windows Cleanup
The source is a first-person report from XDA Developers, published November 1, 2026. It describes the writer’s own PC configuration and cleanup, rather than a controlled test or a measured result across Windows computers. The system had 2TB of combined SSD storage, but the writer chose to reserve most storage for games and keep the C: partition just over 200GB.
The report also discusses Storage Sense, Windows’ built-in feature for scheduled storage cleanup. The writer says it can remove temporary files and lets users set rules for the Recycle Bin and Downloads folder. The frequency can be changed to daily, weekly or monthly, though users should review the settings governing personal files before enabling automatic deletion.
“I had unknowingly accumulated several programs on the C: drive that could just as easily have been installed somewhere else.”
— XDA Developers writer
Results Depend on Each PC
The reported amounts are one user’s observations, not guaranteed savings for other computers. The article does not provide a before-and-after total for all reclaimed space, and it does not establish how common the listed files or settings are across Windows systems. It also does not specify the Windows version used, which may affect the exact names or locations of settings.
Deleting cache and diagnostic files can cause some data to be recreated, and the report says games may rebuild shader data they need. Users should not assume that every large file is safe to remove. The article specifically leaves the pagefile intact; it offers no general recommendation to remove system-managed files without checking their purpose.
Check Settings Before Deleting
The next step for readers facing the same issue is to check their own storage breakdown, review where new apps and downloads are saved, and decide whether Storage Sense’s cleanup rules fit their needs. A disk-usage tool can help locate large folders, but each result should be identified before removal rather than deleted solely because it occupies substantial space.
The source does not announce a Windows change or a scheduled follow-up. Its practical conclusion is that routine cleanup could be easier if Windows more clearly flagged large files that may no longer be useful. Until then, users will need to monitor their partitions and verify what they are deleting.
Key Questions
How did the writer free space on the C: drive?
The writer redirected new app installations to another partition, moved some existing programs by reinstalling them, and removed selected files identified in a WizTree scan. The report says moving existing apps freed dozens of gigabytes, with additional space recovered from specific files.
Where is the Windows setting for the default app installation drive?
The writer found it at Settings > Storage > Advanced storage settings > Where new content is saved, then selected another drive for new apps. Menu wording can differ by Windows version.
What does Storage Sense clean up?
According to the report, Storage Sense can clear temporary files and can be configured to remove files from the Recycle Bin and Downloads folder after a chosen period. Review its rules before turning on automatic deletion, especially for Downloads.
Should users delete the pagefile to make room?
The writer kept the 12.5GB pagefile, saying it supported smooth system performance. The report does not recommend deleting it; users should avoid removing system files unless they understand their purpose and the likely effects.
Source: XDA Developers
