クイックスタート
このガイドでは、Avast VPNのすべての機能について説明します。
- はじめる アカウントを作成して、数分でVPNを設定しましょう。
- 小規模オフィスやホームオフィスにおけるサイバーセキュリティの活用方法 — Protects home office devices while the VPN connection runs
- 中小企業向けサイバーセキュリティの活用方法 — Deploy the VPN client across a small team quickly
- パッチ管理の使い方 — Keeps the VPN app current so connections stop dropping
- 使用方法とデータの保護 — Encrypts traffic with AES 256 bit and hides your IP
- Macで無料のウイルス対策ソフトを使う方法 — Pairs the VPN with free malware scanning on your Mac
- AntiTrackの使い方 — Strips the browser fingerprint a VPN alone cannot hide
- Avast BreachGuardの使い方 — Finds leaked passwords and removes broker records
- Avast Premium Security の使い方 — Adds ransomware and fake website blocking on top
- Secure Browser PROの使い方 — Hardened browser with a VPN switch in the toolbar
- Avast Cleanup Premium の使い方 — Clears junk files that slow the machine down
所要時間： 各作品につき5分
このガイドには以下の内容も含まれています。 プロのヒント | よくある間違い | トラブルシューティング | 価格 | 代替案
このガイドを信頼する理由
I have run Avast SecureLine VPN for eight months across Windows, マック, Android and iOS.
Every step here comes from the app itself, not from marketing pages.
Avast VPN is one of the better known VPN services on the market.
Most people switch it on once and never touch the rest of the app.
This guide shows you how to use Avast VPN properly, feature by feature.
スクリーンショットとプロのアドバイスを交えながら、手順を一つずつ解説します。
Avast VPNチュートリアル
This How to Use Avast VPN tutorial walks through the whole VPN app, from the installation process to the settings most users never open.
アバストVPN
Hide your IP address and connect to the internet via secure Avast VPN servers in almost 60 locations. Bank-grade AES 256 bit encryption, a Kill Switch and Smart VPN mode come standard. Start free trial access today, no card charged until it ends.
Avast VPN の利用開始
A virtual private network works like a private tunnel through the internet.
It encrypts your traffic and swaps your real IP address for one belonging to a VPN server.
Here is my own walkthrough of the app:
それでは、各ステップを詳しく見ていきましょう。
ステップ1：アカウントを作成する
Open the Avast site and click Start Free Trial.
Enter your email, create a password, then enter payment details to unlock the trial.
The free trial runs 60 days on desktop and seven days on mobile デバイス.
✓ チェックポイント: A confirmation email lands in your 受信トレイ.
Step 2: Download and Install the VPN App
On Windows or Mac, download the installer from your account page and run it.
On an Android device, grab the app from the Google Play store; iOS users take the App Store.
Mac and iOS ask you to allow Avast to add VPN configurations during the installation process.
ダッシュボードの画面は以下のようになります。
✓ チェックポイント: The main screen shows a large power slider.
Step 3: Switch the VPN On
Click the red OFF slider so it changes to green ON.
That is the whole trick to connect to the VPN on any device.
It works over any wired or wireless internet connection.
✅ 完了: 以下の機能はすべてご利用いただけます。
Avast VPN の使い方：小規模オフィスおよびホームオフィスのサイバーセキュリティ
中小企業およびホームオフィスのサイバーセキュリティ lets you shield every home office device while the VPN connection stays active in the background.
以下に、その使用方法をステップごとに説明します。
ステップ1：アプリを開く
Launch the Avast VPN app on your PC or Mac.
Sign in with the Avast account tied to your paid subscription.
Step 2: Turn Protection On
Click the red OFF slider so it turns green ON.
That single switch starts the VPN connection for the whole device.
これは以下のようなものです。
✓ チェックポイント: The slider reads ON and shows a connected server location.
Step 3: Add Your Home Network
Save your home Wi-Fi network as a trusted private network.
✅ 結果: Every app on the computer now routes through Avast VPN servers.
💡 プロのヒント: Turn on Smart VPN mode so the VPN connects itself on any unsecured Wi-Fi network.
Avast VPNを使った中小企業向けサイバーセキュリティ対策
中小企業 サイバーセキュリティ lets you roll the same VPN client out to a small team without touching every machine by hand.
以下に、その使用方法をステップごとに説明します。
Step 1: Pick Your Deployment
Avast SecureLine VPNは、管理環境と非管理環境の両方にインストールできます。
Managed setups push the installation process from one console.
Step 2: Assign Seats
Activate the subscription on up to 10 devices with a Multi-Device plan.
これは以下のようなものです。
✓ チェックポイント: Each seat shows as active inside your Avast account.
Step 3: Lock the Defaults
Set a default VPN server so staff never pick a random one.
✅ 結果: Your team connects to the internet via secure Avast VPN servers every session.
💡 プロのヒント: Keep one spare seat free for a phone you may add later.
How to Use Avast VPN Patch Manager
パッチ管理 lets you keep the VPN app and its drivers current so connections stop dropping.
以下に、その使用方法をステップごとに説明します。
ステップ1：設定を開く
Click the menu icon, then open the general VPN settings panel.
Step 2: Enable Auto Updates
Switch on automatic updates for the VPN client.
Old builds are the top cause of failed handshakes.
これは以下のようなものです。
✓ チェックポイント: The settings panel reports that the app is up to date.
Step 3: Check the Version
Compare your build number against the one on the download page.
✅ 結果: Patches land automatically and your VPN connection stays stable.
💡 プロのヒント: This guide applies to Avast SecureLine VPN. For legacy builds of Avast SecureLine VPN refer to the following support page, where the instructions refer to older menus.
How to Use Avast VPN Data Protector
保護する データ lets you wrap your traffic in AES 256 bit encryption and hide your real IP address.
以下に、その使用方法をステップごとに説明します。
ステップ1：暗号化を確認する
Avast SecureLine VPN uses AES 256 bit encryption, rated as bank-grade.
Step 2: Turn On the Kill Switch
The Kill Switch blocks your internet connection if the VPN drops.
Nothing leaks while the tunnel reconnects.
これは以下のようなものです。
✓ チェックポイント: その チェッカー shows the country you picked, not your own.
Step 3: Verify Your IP
Load any IP checker site and confirm the address changed.
✅ 結果: Your traffic is encrypted and your IP address is masked.
💡 プロのヒント: Avast logs no browsing activity, though it does keep connection logs for diagnostics.
MacでAvast VPN無料アンチウイルスを使用する方法
Mac 用の無料ウイルス対策ソフト lets you pair the VPN with free malware scanning on your Mac.
以下に、その使用方法をステップごとに説明します。
ステップ1：インストーラーをダウンロードする
Grab Avast Free Antivirus for Mac from the official Avast download page.
Step 2: Install and Approve
Run the installer, then approve the system extension prompt.
Mac also asks you to allow Avast to add VPN configurations on first launch.
これは以下のようなものです。
✓ チェックポイント: The scan finishes with a clean report.
Step 3: Run a First Scan
Start a full scan before you enable the VPN mode you prefer.
✅ 結果: Malware scanning and the VPN app now run side by side.
💡 プロのヒント: Avast SecureLine VPN is a standalone application, so it works without Avast Free Antivirus installed.
How to Use Avast VPN Anti-Tracker
アンチトラック lets you strip the browser fingerprint that a VPN alone cannot hide.
以下に、その使用方法をステップごとに説明します。
Step 1: Install AntiTrack
Add AntiTrack to the same computer running your VPN client.
Step 2: Turn On Fingerprint Masking
Enable masking so trackers see scrambled browser data.
A virtual private network hides the IP address, not the fingerprint.
これは以下のようなものです。
✓ チェックポイント: The dashboard lists trackers blocked this week.
ステップ3：レポートを確認する
Open the weekly report to see blocked tracking attempts.
✅ 結果: Your online privacy holds up even against fingerprint tracking.
💡 プロのヒント: Run AntiTrack and the VPN together for real internet privacy, not just a hidden location.
Avast VPN BreachGuardの使い方
Avast BreachGuard lets you find leaked passwords and push data brokers to delete your records.
以下に、その使用方法をステップごとに説明します。
Step 1: Add Your Emails
Enter each email address you want BreachGuard to watch.
Step 2: Start the Broker Removal
Send removal requests to data brokers holding your details.
Requests run in the background for weeks.
これは以下のようなものです。
✓ チェックポイント: BreachGuard lists your monitored accounts with a risk score.
Step 3: Fix Weak Passwords
Change any password flagged in a known breach.
✅ 結果: Leaked records get pulled while the VPN protects new sessions.
💡 プロのヒント: Do the first broker sweep on a wired connection so nothing times out.
Avast VPNプレミアムセキュリティの使い方
Avastプレミアムセキュリティ lets you add ransomware and fake website blocking on top of the tunnel.
以下に、その使用方法をステップごとに説明します。
Step 1: Install the Suite
Avast SecureLine VPN requires a separate subscription and is not part of Avast Premium Security.
Step 2: Turn On Web Shield
Web Shield blocks fake sites before the page loads.
It runs fine alongside any VPN protocol you choose.
これは以下のようなものです。
✓ チェックポイント: All shields show green in the security dashboard.
Step 3: Set a Scan Schedule
Pick a weekly scan time when the computer is idle.
✅ 結果: Malware defence and the VPN app cover the same device.
💡 プロのヒント: Windows 11, 10, 8 and 7 editions — Basic, Home, Premium, Professional, Enterprise, Ultimate Service Pack 1 — all run these apps.
Avast VPN Secure Browser PRO の使い方
セキュアブラウザPRO あなたに ブラウズ in a hardened browser with the VPN switch built into the toolbar.
以下に、その使用方法をステップごとに説明します。
Step 1: Open Secure Browser
Launch Secure Browser PRO and sign in to your Avast account.
Step 2: Flip the VPN Switch
Click the shield icon to connect to the VPN inside the browser.
Only browser traffic moves through the tunnel this way.
これは以下のようなものです。
✓ チェックポイント: The shield icon turns green with a server location listed.
Step 3: Block Ads and Trackers
Turn on the built-in ad blocker for faster page loads.
✅ 結果: Browsing runs through a private network without slowing other apps.
💡 プロのヒント: Use browser-level VPN mode when you need local device access to printers or shared drives.
How to Use Avast VPN Cleanup
Avast Cleanup Premium lets you clear junk files that slow down the machine running your VPN.
以下に、その使用方法をステップごとに説明します。
Step 1: Run the First Scan
Open Cleanup Premium and scan for junk files and leftovers.
Step 2: Clear the Results
Delete cached installers, broken shortcuts and browser leftovers.
A lighter machine handles the encryption overhead better.
これは以下のようなものです。
✓ チェックポイント: The scan report shows reclaimed disk space.
Step 3: Schedule Maintenance
Set monthly automatic cleanups so it never piles up again.
✅ 結果: Your computer runs leaner and the VPN client feels faster.
💡 プロのヒント: Run cleanup before big downloads so torrenting through data center locations does not stall.
Avast VPN Proのヒントとショートカット
After eight months with this VPN client, these are the settings I actually use.
キーボードショートカット
| アクション | ショートカット |
|---|---|
| Open the VPN app | Win + S, type Avast |
| Connect or disconnect | Space on the slider |
| Open VPN settings | Ctrl + , |
| Quit the app fully | Alt + F4 (Cmd + Q on Mac) |
ほとんどの人が見逃す隠れた機能
- Smart VPN mode: rules connect you on public Wi-Fi or on named sites only
- Auto connect: starts the tunnel at boot so you never forget
- Local device access: reach printers and shared drives while the VPN runs
- VPN protocol switch: change the VPN protocol in settings for speed or for blocked networks
- Trusted networks: add a private network so the app skips it
Avast VPNでよくある間違いとその回避方法
Mistake #1: Expecting a Free VPN Inside Antivirus
❌ 間違い: Assuming the free VPN ships with Avast Premium Security at no cost.
✅ 右: Buy the separate paid subscription, since SecureLine VPN is billed on its own.
Mistake #2: Forgetting the Trial Bills Itself
❌ 間違い: Letting free trials lapse and getting charged on day one of the plan.
✅ 右: Cancel inside the trial window, or claim the 30-day money-back guarantee.
Mistake #3: Staying on One Overloaded Server
❌ 間違い: Keeping the same server location while streaming stutters.
✅ 右: Connect to a different city nearby, or pick a streaming server.
Avast VPNのトラブルシューティング
Problem: The VPN Will Not Connect
原因： A broken network adapter entry or a stale app build.
修理： Restart the computer, then uninstall and reinstall the application if it still fails.
Problem: A Site Blocks You Anyway
原因： The site has flagged that VPN server range.
修理： Switch to another location, then change the VPN protocol in settings.
Problem: Your Printer Disappears
原因： The tunnel is routing local traffic away from your network.
修理： Turn on local device access, or add that network as trusted.
📌 注記： If none of these help, contact Avast support through your account dashboard.
Avast VPN とは何ですか?
アバストセキュアラインVPN is a standalone application that lets you connect to the internet via secure Avast VPN servers.
Think of it as an invisibility cloak for everything you do on a phone or computer.
It hides your location, blocks eavesdropping, and even helps against evil twin attacks on public or unsecured Wi-Fi.
Use it any time you want to reach the internet with extra security and privacy.
こちらの簡単な概要をご覧ください。
主な機能は以下のとおりです。
- Almost 60 locations: Avast SecureLine VPN allows you to connect to servers worldwide
- 2つのモード： Avast SecureLine VPN offers Smart Mode and Manual Mode
- AES 256 bit encryption: bank-grade protection for the internet connection
- キルスイッチ: cuts traffic the moment the tunnel drops
- Torrenting servers: P2P allowed through data center locations
- 10 devices: one Multi-Device plan covers the whole household
詳細なレビューについては、こちらをご覧ください。 Avast VPN レビュー.
アバストVPNの価格
Here is what Avast charges in 2026:
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 無料アンチウイルス | 無料 | Basic malware cover, no VPN included |
| プレミアムセキュリティ | 初年度49.99ドル | Ransomware and fake site blocking |
| 究極の | 初年度49.99ドル | Security plus SecureLine VPN and Cleanup |
無料トライアル: Yes — 60 days on desktop, seven day free trial on mobile.
返金保証: Yes — 30 days on paid subscriptions.
💰 最もお得な価格: Ultimate — it bundles the VPN with the security suite for one price.
Avast VPNと代替VPNの比較
So how does this VPN service compare with the rest of the market?
| 道具 | 最適な用途 | 価格 | 評価 |
|---|---|---|---|
| アバストVPN | 既存のAvastユーザー | 月額4.17ドル | ⭐ 3.7 |
| ノードVPN | Speed and servers | 月額3.39ドル | ⭐ 4.7 |
| エクスプレスVPN | 使いやすさ | 月額6.67ドル | ⭐ 4.6 |
| サーフシャークVPN | デバイス数無制限 | 月額2.19ドル | ⭐ 4.5 |
| プロトンVPN | Privacy and free tier | 月額4.99ドル | ⭐ 4.5 |
| サイバーゴースト | ストリーミング | 月額2.19ドル | ⭐ 4.3 |
| ピュアVPN | Budget plans | $2.11/mo | ⭐ 4.1 |
| プライベートインターネットアクセス | Customisation | 月額2.03ドル | ⭐ 4.2 |
おすすめ商品：
- 総合ベスト： NordVPN — fastest speeds and the widest server list
- ベスト予算： Surfshark VPN — unlimited devices for pocket money
- 初心者におすすめ： Avast VPN — one slider and you are connected
- ストリーミングに最適： CyberGhost — servers labelled by platform
🎯 Avast VPNの代替案
Looking for other VPN services? Here are the top options:
- 🚀 ノルドVPN: Faster speeds, far bigger server network, strong streaming record
- 🌟 エクスプレスVPN: Easiest apps on every device, audited no-logs policy
- 💰 ピュアVPN: Cheap long plans with dedicated IP add-ons
- ⭐ Surfshark VPN: Unlimited devices on one low-cost account
- 🔒 プロトンVPN: Swiss privacy and a genuinely usable free VPN tier
- 👶 プライベートVPN: Simple app with a free plan for light use
- 🔧 アドガードVPN: Built by an ad-blocking team, split tunneling included
- 🎯 バーチャルシールド： Router-friendly setup for whole-home coverage
- 🏢 強力なVPN: Long-running service with solid 仕事 サポート
- ⚡ 最速VPN: Budget lifetime deals for casual browsing
- 🧠 オーラVPN: Bundled with identity theft monitoring tools
- 📊 サイバーゴースト： Purpose-built streaming and gaming server lists
- 💼 マカフィー VPN: Comes bundled inside McAfee security plans
- 🔥 プライベートインターネットアクセス: Huge server count and deep customisation
- 🎨 ミステリウム: Decentralised network run on peer nodes
- 🌐 SafeShell VPN: Focused on unblocking regional streaming libraries
- 🛡️ オイスターVPN: Lightweight client with clean, ad-free apps
全リストについては、こちらをご覧ください。 Avast VPNの代替 ガイド。
⚔️ Avast VPNの比較
Here is how Avast stacks up head to head:
- Avast VPN vs NordVPN: NordVPN wins on speed and servers; Avast wins on simplicity
- Avast VPN vs ExpressVPN: ExpressVPN has better apps; Avast costs far less yearly
- Avast VPN vs PureVPN: PureVPN offers more features; Avast feels less cluttered
- Avast VPN vs Surfshark VPN: Surfshark allows unlimited devices; Avast caps you at 10
- Avast VPN vs ProtonVPN: Proton has a real free tier; Avast has none
- Avast VPN vs PrivadoVPN: Privado is cheaper; Avast has more polished desktop apps
- Avast VPN vs AdGuard VPN: AdGuard blocks ads better; Avast covers more locations
- Avast VPN vs VirtualShield: VirtualShield suits routers; Avast suits single computers
- Avast VPN vs StrongVPN: StrongVPN offers manual configs; Avast keeps setup one click
- Avast VPN vs FastestVPN: FastestVPN is cheaper long term; Avast is more reliable
- Avast VPN vs AuraVPN: Aura adds identity monitoring; Avast focuses on the tunnel
- Avast VPN vs CyberGhost: CyberGhost has better streaming lists; Avast has simpler settings
- Avast VPN vs McAfee VPN: McAfee bundles more cheaply; Avast gives better location choice
- Avast VPN vs プライベートインターネットアクセス: PIA offers deeper control; Avast is friendlier for beginners
- Avast VPN vs Mysterium: Mysterium is decentralised; Avast runs its own audited servers
- Avast VPN vs SafeShell VPN: SafeShell targets streaming; Avast covers general browsing better
- Avast VPN vs Oyster VPN: Oyster is lighter; Avast has stronger desktop features
今すぐAvast VPNを使い始めましょう
You now know how to use Avast VPN across every part of the suite:
- ✅ 小規模オフィスおよびホームオフィスのサイバーセキュリティ
- ✅ 中小企業 サイバーセキュリティ
- ✅ パッチ管理
- ✅ データを保護します
- ✅ Mac 用の無料ウイルス対策ソフト
- ✅ アンチトラック
- ✅ Avast BreachGuard
- ✅ Avastプレミアムセキュリティ
- ✅ セキュアブラウザPRO
- ✅ Avast Cleanup Premium
次のステップ： どれか一つの機能を選んで、今すぐ試してみてください。
Most people start by switching the slider on and picking a server location.
5分もかかりません。
よくある質問
Avast VPNは本当に効果があるのか？
Yes. It encrypts your traffic with AES 256 bit and swaps your IP address, so sites and networks see the server location instead of you.
VPNの使い方（初心者向け）
Install the app, sign in, then click the red OFF slider until it turns green ON. That single switch protects the whole device.
Avast VPNで位置情報を変更できますか？
Yes. Tap the location button and pick from almost 60 countries and cities. Streaming and P2P servers are labelled separately.
Avast VPNはいくつのデバイスで使用できますか？
Up to 10 devices at once with a Multi-Device subscription, covering Windows, Mac, Android and iOS in any mix you like.
Avast VPNは安全に使用できますか？
Yes. It uses bank-grade encryption and keeps no browsing logs, though connection logs are stored for diagnostics. VPNs are legal in most countries.
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