Stop Programs Installing on C Drive in Windows

Many programs install to C drive by default. Over time, installers, games, caches, and program data can make C drive full even when another disk has plenty of space.

Understand the problem

You can change Microsoft Store app locations and choose custom paths for many desktop programs. System components, drivers, and shared runtimes should usually remain on C drive.

• Confirm the exact disk, partition, drive letter, file system, and capacity before changing anything.
• Back up or recover important files before formatting, deleting, converting, resizing, or recreating partitions.
• For boot-related changes, check BIOS or UEFI mode, boot order, and system partition status before editing disk layout.

Use Windows built-in tools

Use Windows storage settings and custom installers to control future installation locations.

1. Open Settings > System > Storage > Advanced storage settings.
2. Change where new apps or content are saved when Windows provides the option.
3. When installing desktop programs, choose Custom installation and browse to another drive.
4. Move game libraries through Steam, Epic, or the launcher that owns the library.
5. Clean old installers and caches only after confirming programs still work.

Use Qiling tools for guided steps

Qiling Disk Master

Back up program data and personal folders before changing install paths or moving applications.

• Free Download
• Windows 11/10/8.1/8/7, 100% Secure

Function. Back up files before changing locations or programs

Step 1. Open Qiling Disk Master and choose Backup and Recovery > File backup.

Step 2. Select download folders, program data, game saves, and user project folders and any related configuration folders that you may need later.

Step 3. Choose a destination on another disk, external drive, or network location. Avoid saving the backup to the disk you are about to modify.

Step 4. Review the source and destination, then click Proceed. Keep the backup until the new location or new program path is verified.

Check the result

Install a small test program to the new location, restart Windows, and confirm it opens normally from the non-C drive path.

Related Articles

• Change Program Files Location
  Learn what happens when changing program install paths in Windows.
• Move Installed Programs to Another Drive
  Move supported programs and keep C drive from filling up.
• Add More Storage to a Windows 10 PC
  Free space, add another drive, extend C, or migrate to a larger SSD when changing install locations is not enough.

Is this information helpful?   Yes   No

This information is not relevant.

This information is not easy to understand.

This information is not deep enough.

What can we do to improve this information? (Optional)

Refresh Please enter the verification code!