Running Parity filled up my C Drive, as I also had a Myst wallet there as well. I don't remember if the install program asked for the place to store the files.

If I move these files to another drive, how do I reconfigure Parity to tell it where the files are now? I checked the settings tab, and don't see any options. I checked in c:\Program Files\Ethcore\Parity and only see 3 .exe's and an .ico files.

By running WinDirStats (to find out why my disk was full), I found the huge files at c:\users\myname\Local\Parity\Ethereum\chains\ethereum\db (then a few more folders deeper).

  • Access Denied during MKLINK command ... am i the only one with this issue ? no and there a Solution cause syntax is incorrect. mklink has the following syntax : mklink [options] <Link> <Target> Target is the file/folder that exists, and Link is the created one that links to the target. so the command should be: mklink /D "E:\Apple Computer\MobileSync\Backup" "C:\Users\odellt1\AppData\Roaming\Apple Computer\MobileSync\Backup"
    – Ree KoD
    Commented Mar 7, 2018 at 18:49

4 Answers 4


You can create a directory junction using MKLINK.

First rename the folder or copy it to D:\Parity (assuming you wand the data to be in the D: drive. XXXX below refers to you user name).


Then use mklink:

mklink /J C:\Users\XXXX\AppData\Local\Parity D:\Parity

Then just copy everything into D:\Parity if you already have files in the original (C:\Users\XXXX\AppData\Local\Parity) location.

  • Had to return to this issue today to get it working. See also: superuser.com/questions/597551/…. The command I had to run was: C:\WINDOWS\system32>mklink /J "%LOCALAPPDATA%\parity" "e:\ParityWallet" and the response was Junction created for C:\Users\MyUserXxxx\AppData\Local\parity <<===>> e:\ParityWallet Commented Dec 18, 2017 at 5:41

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:

  1. Stop Parity.

    1. Right-click the Parity icon in the Windows system tray. Choose Exit.
  2. Configure Parity to use the new location for its database directory.

    1. Navigate to the Parity Config Generator.

    2. For Mode, choose Advanced Configuration.

    3. Expand the Parity section.

    4. For Database Path, enter D:\ProgramData\Parity\Ethereum\chains.

    5. In the config.toml preview panel, click the Download Config File button. Save the file as %UserProfile%\AppData\Roaming\Parity\Ethereum\config.toml.

  3. Start Parity Ethereum.

You may want to consider also adjusting some other Parity settings that control how and where Parity stores various files:

  • ParityBase Path

  • ParityLight

  • FootprintDB Compaction Profile

Source: Parity Ethereum Documentation ➧ Configuring Parity ➧ Config File


You can also do it directly in the command prompt:

parity --db-path="E:\New_db_folder_name"

P.S. - make sure you navigated to the folder where your parity.exe is located and/or you added it's location to your PATH. For me, when installing parity, I changed the regular path, i.e. "C:\Program Files(x86)\Parity" to somewhere on my E: drive


The correct way to do this would be using a configuration file, and changing the blockchain location https://wiki.parity.io/Configuring-Parity

  • That will not move the existing data, but recreate the required data
    – Ayushya
    Commented Mar 27, 2018 at 8:44
  • neither will mklink from the previous answer
    – Julia Vi
    Commented Mar 29, 2018 at 8:02

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.