diff --git a/README.md b/README.md
index 658f5cdcac98ca4cf41fdf52f496a84c44aeb780..5f8204b57491724d295ac96bd6d62059b2c728ea 100644
--- a/README.md
+++ b/README.md
@@ -47,7 +47,7 @@ You can download precompiled binaries from [releases page](https://github.com/ju
 
 ### Building from source
 
-You need first installing [Go](https://golang.org) 1.14+, then run following commands:
+You need first installing [Go](https://golang.org) 1.14+ and GCC 5.4+, then run following commands:
 
 ```bash
 $ git clone https://github.com/juicedata/juicefs.git
@@ -111,8 +111,9 @@ If you wanna use JuiceFS in Hadoop, check [Hadoop Java SDK](docs/en/hadoop_java_
 - [Cache Management](docs/en/cache_management.md)
 - [Fault Diagnosis and Analysis](docs/en/fault_diagnosis_and_analysis.md)
 - [S3 Gateway](docs/en/s3_gateway.md)
-- [Using JuiceFS on Kubernetes](docs/en/how_to_use_on_kubernetes.md)
 - [FUSE Mount Options](docs/en/fuse_mount_options.md)
+- [Using JuiceFS on Kubernetes](docs/en/how_to_use_on_kubernetes.md)
+- [Using JuiceFS on Windows](docs/en/windows.md)
 
 ## POSIX Compatibility
 
diff --git a/README_CN.md b/README_CN.md
index aae35a003e2bdf7e8ff4aff8d73ebcfd5589a44f..e91bab81060f1142125ed4b63b45e14c6072eac6 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -48,7 +48,7 @@ JuiceFS 中的文件格式，如下图所示。一个文件首先被拆分成固
 
 ### 从源代码编译
 
-你需要先安装 [Go](https://golang.org) 1.14+，然后通过下面的方式来编译：
+你需要先安装 [Go](https://golang.org) 1.14+ 以及 GCC 5.4+，然后通过下面的方式来编译：
 
 ```bash
 $ git clone https://github.com/juicedata/juicefs.git
@@ -112,8 +112,9 @@ JuiceFS 使用 [Hadoop Java SDK](docs/zh_cn/hadoop_java_sdk.md) 与 Hadoop 生
 - [缓存管理](docs/en/cache_management.md)
 - [故障诊断和分析](docs/en/fault_diagnosis_and_analysis.md)
 - [S3 网关](docs/en/s3_gateway.md)
-- [在 Kubernetes 中使用 JuiceFS](docs/en/how_to_use_on_kubernetes.md)
 - [FUSE 挂载选项](docs/en/fuse_mount_options.md)
+- [在 Kubernetes 中使用 JuiceFS](docs/en/how_to_use_on_kubernetes.md)
+- [在 Windows 中使用 JuiceFS](docs/en/windows.md)
 
 ## POSIX 兼容性测试
 
diff --git a/docs/en/faq.md b/docs/en/faq.md
index cbfe7ff4e1626382d42cabfca601ceb1b861b9bf..3fff35be6889e5d30e1e1e6811de5f2ac6a81b6e 100644
--- a/docs/en/faq.md
+++ b/docs/en/faq.md
@@ -52,7 +52,7 @@ Use [`juicefs umount`](command_reference.md#juicefs-umount) command to unmount t
 
 First unmount JuiceFS volume, then re-mount the volume with newer version client.
 
-## docker: Error response from daemon: error while creating mount source path 'XXX': mkdir XXX: file exists.
+## `docker: Error response from daemon: error while creating mount source path 'XXX': mkdir XXX: file exists.`
 
 When you use [Docker bind mounts](https://docs.docker.com/storage/bind-mounts) to mount a directory on the host machine into a container, you may encounter this error. The reason is that `juicefs mount` command was executed with non-root user. In turn, Docker daemon doesn't have permission to access the directory.
 
@@ -60,3 +60,7 @@ There are two solutions to this problem:
 
 1. Execute `juicefs mount` command with root user
 2. Modify FUSE configuration and add `allow_other` mount option, see [this document](fuse_mount_options.md#allow_other) for more information.
+
+## `/go/pkg/tool/linux_amd64/link: running gcc failed: exit status 1` or `/go/pkg/tool/linux_amd64/compile: signal: killed`
+
+This error may caused by GCC version is too low, please try to upgrade your GCC to 5.4+.
diff --git a/docs/en/how_to_setup_object_storage.md b/docs/en/how_to_setup_object_storage.md
index 20f2752d5dd8415d7372daf0a9606a59d51dcc32..05b178a83acfb7ba2fc1d5899a072fa699e2e9dc 100644
--- a/docs/en/how_to_setup_object_storage.md
+++ b/docs/en/how_to_setup_object_storage.md
@@ -450,7 +450,7 @@ $ sudo apt-get install librados-dev
 $ sudo yum install librados-devel
 ```
 
-Then compile JuiceFS for Ceph:
+Then compile JuiceFS for Ceph (ensure you have Go 1.14+ and GCC 5.4+):
 
 ```bash
 $ make juicefs.ceph
diff --git a/docs/en/windows.md b/docs/en/windows.md
index c6314f880054990e003e78e8d49b9ec2970a4846..e4cdfd0424e8753cd1a66ef00a04fe8d1887ea8e 100644
--- a/docs/en/windows.md
+++ b/docs/en/windows.md
@@ -1,27 +1,27 @@
-# Use JuiceFS on Windows
+# Using JuiceFS on Windows
 
 
 ## Install dependencies
 
-JuiceFS depends on [WinFsp](http://www.secfs.net/winfsp/rel/), please install it first.
+JuiceFS depends on [WinFsp](http://www.secfs.net/winfsp/rel), please install it first.
 
 
 ## Build JuiceFS from source
 
 We can cross compile JuiceFS for Windows platform on Linux or macOS.
 
-1. Install [mingw-w64](http://mingw-w64.org) on Linux or macOS. 
+1. Install [mingw-w64](http://mingw-w64.org) on Linux or macOS.
 
    On Linux, it can be installed using the distro's package manager like `yum` or `apt`.
 
-   On macOS, use [brew](https://brew.sh/) to install: `brew install mingw-w64`
+   On macOS, use [Homebrew](https://brew.sh) to install: `brew install mingw-w64`
 
-2. Build JuiceFS for Windows
+2. Build JuiceFS for Windows:
 
-```
-git clone https://github.com/juicedata/juicefs.git
-cd juicefs
-make juicefs.exe
+```bash
+$ git clone https://github.com/juicedata/juicefs.git
+$ cd juicefs
+$ make juicefs.exe
 ```
 
 
@@ -30,12 +30,12 @@ make juicefs.exe
 ### Start Redis Server
 
 JuiceFS requires a Redis, there is a [Windows version of Redis](https://github.com/tporadowski/redis),
-please download the latest release and launch the redis server.
+please download the latest release and launch the Redis server.
 
 
 ### Format JuiceFS
 
-For test purpose, we can use a local disk to simulate a object store:
+For test purpose, we can use a local disk to simulate an object store:
 
 ```
 PS C:\> .\juicefs.exe format localhost test
@@ -44,11 +44,11 @@ PS C:\> .\juicefs.exe format localhost test
 2021/03/22 15:16:18.024710 juicefs[7064] <INFO>: Data use file:///C:/jfs/local/test/
 ```
 
-For other supported object storage, please check out [How To Setup Object Storage](how_to_setup_object_storage)
+For other supported object storage, please check out ["How to Setup Object Storage"](how_to_setup_object_storage.md).
 
 ### Mount JuiceFS
 
-Select an unused drive letter, such as `Z:`
+Select an unused drive letter, such as `Z:`, then execute:
 
 ```
 PS C:\> .\juicefs.exe mount localhost Z:
@@ -59,7 +59,6 @@ PS C:\> .\juicefs.exe mount localhost Z:
 The service juicefs has been started.
 ```
 
-
-Then we can use JuiceFS as a shared disk drive `Z:`
+Then we can use JuiceFS as a shared disk drive `Z:`, it looks like:
 
 ![JuiceFS on Windows](../images/juicefs-on-windows.png)
diff --git a/docs/zh_cn/faq.md b/docs/zh_cn/faq.md
index 77198ad7969ca30ddc76f59614c505727270382e..49e8372c7ed2110d3d1e22903f6bbe26e82c2b09 100644
--- a/docs/zh_cn/faq.md
+++ b/docs/zh_cn/faq.md
@@ -52,7 +52,7 @@ JuiceFS 内置多级缓存（主动失效），一旦缓存预热好，访问的
 
 首先请卸载 JuiceFS 文件系统，然后使用新版本的客户端重新挂载。
 
-## docker: Error response from daemon: error while creating mount source path 'XXX': mkdir XXX: file exists.
+## `docker: Error response from daemon: error while creating mount source path 'XXX': mkdir XXX: file exists.`
 
 当你使用 [Docker bind mounts](https://docs.docker.com/storage/bind-mounts) 把宿主机上的一个目录挂载到容器中时，你可能会遇到这个错误。这是因为使用了非 root 用户执行了 `juicefs mount` 命令，进而导致 Docker 没有权限访问这个目录。
 
@@ -60,3 +60,7 @@ JuiceFS 内置多级缓存（主动失效），一旦缓存预热好，访问的
 
 1. 用 root 用户执行 `juicefs mount` 命令
 2. 修改 FUSE 的配置文件以及增加 `allow_other` 挂载选项，请查看[这个文档](../en/fuse_mount_options.md#allow_other)了解更多信息。
+
+## `/go/pkg/tool/linux_amd64/link: running gcc failed: exit status 1` 或者 `/go/pkg/tool/linux_amd64/compile: signal: killed`
+
+这个错误有可能是因为 GCC 版本过低导致，请尝试升级 GCC 到 5.4 及以上版本。