diff --git a/blockchains/supervisor.conf b/blockchains/supervisor.conf
index 566fa4dc..c3314227 100644
--- a/blockchains/supervisor.conf
+++ b/blockchains/supervisor.conf
@@ -1,5 +1,5 @@
 [program:${blockchain}]
-command=/usr/local/bin/${blockchain_cmd} -datadir=/mnt/blockchain/${blockchain}
+command=nice -n +6 /usr/local/bin/${blockchain_cmd} -datadir=/mnt/blockchain/${blockchain}
 autostart=true
 autorestart=true
 stderr_logfile=/var/log/supervisor/${blockchain}.err.log
diff --git a/lib/blockchain/common.js b/lib/blockchain/common.js
index 7c646dd2..cfd8acfb 100644
--- a/lib/blockchain/common.js
+++ b/lib/blockchain/common.js
@@ -5,7 +5,15 @@ const cp = require('child_process')
 const fs = require('fs')
 const logger = require('console-log-level')({level: 'info'})
 
-module.exports = {es, writeSupervisorConfig, firewall, randomPass, fetchAndInstall, logger}
+module.exports = {
+  es,
+  writeSupervisorConfig,
+  firewall,
+  randomPass,
+  fetchAndInstall,
+  logger,
+  isInstalledSoftware
+}
 
 const BINARIES = {
   BTC: {
@@ -49,6 +57,8 @@ function es (cmd) {
 }
 
 function writeSupervisorConfig (coinRec, cmd) {
+  if (isInstalledSoftware(coinRec)) return
+
   const blockchain = coinRec.code
 
   const supervisorConfig = `[program:${blockchain}]
@@ -63,9 +73,15 @@ environment=HOME="/root"
   fs.writeFileSync(`/etc/supervisor/conf.d/${coinRec.code}.conf`, supervisorConfig)
 }
 
-function fetchAndInstall (crypto) {
-  const binaries = BINARIES[crypto.cryptoCode]
-  if (!binaries) throw new Error(`No such coin: ${crypto.code}`)
+function isInstalledSoftware (coinRec) {
+  return fs.existsSync(`/etc/supervisor/conf.d/${coinRec.code}.conf`)
+}
+
+function fetchAndInstall (coinRec) {
+  if (isInstalledSoftware(coinRec)) return
+
+  const binaries = BINARIES[coinRec.coinRecCode]
+  if (!binaries) throw new Error(`No such coin: ${coinRec.code}`)
 
   const url = binaries.url
   const downloadFile = path.basename(url)
diff --git a/lib/blockchain/install.js b/lib/blockchain/install.js
index 9f851260..f824e0c6 100644
--- a/lib/blockchain/install.js
+++ b/lib/blockchain/install.js
@@ -25,12 +25,16 @@ const PLUGINS = {
 
 module.exports = {run}
 
-function installedFilePath (crypto) {
+function installedVolumeFilePath (crypto) {
   return path.resolve(coinUtils.cryptoDir(crypto), '.installed')
 }
 
-function isInstalled (crypto) {
-  return fs.existsSync(installedFilePath(crypto))
+function isInstalledVolume (crypto) {
+  return fs.existsSync(installedVolumeFilePath(crypto))
+}
+
+function isInstalledSoftware (crypto) {
+  return common.isInstalledSoftware(crypto)
 }
 
 function processCryptos (codes) {
@@ -67,7 +71,7 @@ function setupCrypto (crypto) {
   common.es('rm -rf *')
   common.fetchAndInstall(crypto)
   cryptoPlugin.setup(cryptoDir)
-  fs.writeFileSync(installedFilePath(crypto), '')
+  fs.writeFileSync(installedVolumeFilePath(crypto), '')
   process.chdir(oldDir)
 }
 
@@ -79,7 +83,7 @@ function plugin (crypto) {
 
 function run () {
   const choices = _.map(c => {
-    const checked = isInstalled(c)
+    const checked = isInstalledSoftware(c) && isInstalledVolume()
     return {
       name: c.display,
       value: c.code,