The files in question are Parity's database files. The location of the database directory can be assigned via settings in Parity's configuration file. On Windows, this file is located at
%UserProfile%\AppData\Roaming\Parity\Ethereum\config.toml. The Parity Config Generator provides a web UI for exploring the available settings and generating complete configuration files.
On Windows, one can relocate Parity's database directory from
%UserProfile%\AppData\Local\Parity\Ethereum\chains (the default location) to
D:\ProgramData\Parity\Ethereum\chains by moving the directory and assigning the following setting:
db_path = "D:\\ProgramData\\Parity\\Ethereum\\chains"
This can be done with the assistance of the Parity Config Generator as follows:
- Right-click the Parity icon in the Windows system tray. Choose Exit.
Configure Parity to use the new location for its database directory.
Navigate to the Parity Config Generator.
For Mode, choose Advanced Configuration.
Expand the Parity section.
For Database Path, enter
config.toml preview panel, click the button. Save the file as
Start Parity Ethereum.
You may want to consider also adjusting some other Parity settings that control how and where Parity stores various files:
Source: Parity Ethereum Documentation ➧ Configuring Parity ➧ Config File