Windows compute / Google Compute Engine Windows Server alternative

Google Compute Engine Windows alternative for portable agents

Google Compute Engine Windows VMs already retain their installed system on persistent boot disks. Suspend can also preserve machine state when the guest and configuration are prepared correctly. Separate Windows license, machine, disk and suspended-state costs before comparing with portable Linux agent work.

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Reviewed 2026-10-19 · Published by the Sandbox0 team

When Google Compute Engine Windows Server fits

Choose Compute Engine Windows for native Windows applications and Google Cloud VM/network integrations. Keep required Windows software, drivers and full-VM workloads on appropriate supported infrastructure.

When to consider Sandbox0

Consider Sandbox0 for compatible Linux agents needing a managed durable growing RootFS and supported files during compute pauses. Keep native Windows stages and necessary Google Cloud services separately.

Capabilities

Google Compute Engine Windows Server and Sandbox0: what persists?

Feature comparison with documentation and verification status
Environment and runtime lifetimeGoogle Compute Engine Windows ServerEligible VMs can remain suspended for up to sixty days before transition to the stopped (TERMINATED) state. This bounds retained execution state, not the separate persistent-disk lifecycle.View evidence ↗Sandbox0ttl and hard_ttl default to 0 (disabled). Configure idle pause and deletion policies for the same persistent sandbox identity; an idle running sandbox still accrues compute charges.Read documentation →
Persistent filesGoogle Compute Engine Windows ServerPersistent boot/data disks retain data through supported stop/start; local SSD and deletion choices have separate rules.View evidence ↗Sandbox0The writable RootFS survives successful checkpoints, including software, system configuration, dependencies, and user data.Read documentation →
Whole RootFSGoogle Compute Engine Windows ServerThe Windows persistent boot disk contains the installed system, not only an application workspace.View evidence ↗Sandbox0Persistence extends beyond /workspace to paths such as /usr/local, /etc, and /home. Runtime tmpfs and virtual filesystems are excluded.Read documentation →
Release compute, keep stateGoogle Compute Engine Windows ServerPlatform Suspend supports prepared Windows guests with configuration restrictions and a 60-day maximum suspended period.View evidence ↗Sandbox0Pause compute between tasks; resume on available capacity. Default resume starts fresh processes from the saved filesystem.Read documentation →
Memory and process stateGoogle Compute Engine Windows ServerSuspend preserves VM execution/memory state when supported; guest Windows hibernation must be disabled first.View evidence ↗Sandbox0Experimental memory checkpoints can preserve compatible process state. Use memory: true on both pause and resume on a compatible deployment. A filesystem checkpoint alone does not preserve running processes.Read documentation →

Online RootFS growth

On growth-enabled images, Sandbox0 automatically expands the writable RootFS as free space runs low, within a configured sparse logical ceiling up to 64 TiB. Agent processes keep running. Growth is enabled in the qualified Cloud region; confirm activation for other regions. Existing images and snapshots retain their captured storage geometry. The ceiling is logical capacity, not preallocated host disk.

GCE already retains whole Windows boot disks and supports prepared suspend with a sixty-day limit. Provisioned-disk resizing and Windows filesystem expansion differ from automatic online low-space RootFS growth in a managed compatible Linux runtime.

Files while compute is paused

Sandbox0's Files API reads persistent files without resuming compute. Filesystem-only pauses also permit edits; retained-memory pauses are read-only and reject mutations with 409. SSH, SFTP, file watching, and runtime-only mounts require running compute.

Persistent disks and snapshots allow operator-designed access workflows, subject to OS/filesystem and lifecycle constraints. They are not a native arbitrary file API over a paused whole OS filesystem; saved-memory consistency needs explicit coordination.

See paused file operations →

Suspend requires Windows guest preparation

Compute Engine’s suspend guide requires disabling guest OS hibernation for Windows before using the platform’s Suspend operation. After sixty suspended days, Compute Engine automatically moves the VM into its stopped (TERMINATED) state, ending saved execution-state retention. Check supported machine/OS and attached-resource conditions; ordinary Stop does not preserve running memory.

Source 1 ↗

Windows licensing is additional to the machine

Most Windows Server images cost $0.046 per visible vCPU-hour, separate from machine charges. The named f1-micro/g1-small exception uses a different flat rate. SQL Server can add another software charge. A low Linux machine quote therefore is not the complete Windows VM cost.

Source 1 ↗

Boot-disk growth needs a guest filesystem operation

Persistent disks already retain the complete installed OS. Increasing a disk’s provisioned size and extending its Windows partition/filesystem are explicit operations. They do not establish one low-space-triggered policy that automatically grows every path in a running agent’s durable system.

Source 1 ↗

Pricing

Compare billing models, then price your workload

CPU allocation, memory, billing minimums, disk, plan fees, and supported workload differ. These meters are not equal-performance machine quotes. Confirm region, resource units, and included allowances before estimating a total.

Google Compute Engine Windows Server

Pricing reviewed 2026-10-19

Windows Server image license reference
$0.046 per visible vCPU-hour
Most machine types; additional to the machine, disk and networking.
Rate source ↗
f1-micro/g1-small Windows image exception
$0.023 per VM-hour
Image-license fee only; not a complete VM price.
Rate source ↗
Windows image minimum/increment
1-minute minimum, then 1-second increments
Separate machine/resource meters and applicable discounts still need their own quote.
Rate source ↗

The image license references are USD and distinct from base VM resources. Confirm machine/region, visible vCPUs, boot/data disks, saved suspended state, IP, traffic and other software. Spot does not eliminate premium-image costs; no universal savings follows from comparing a license-only fee with a complete Linux runtime.

Check current Google Compute Engine Windows Server pricing ↗

Sandbox0

$0.015/GiB-hour compute (billed by the second at approximately $0.000004167/GiB-second), plus $0.02/GiB-month of retained incremental RootFS and memory checkpoint data. Shared base images and platform recovery retention are excluded; paused sandboxes accrue storage charges only.

Compute / GiB-hour
$0.015
Retained data / GiB-month
$0.02
Paused compute
$0.00

A 4 GiB agent, 100 running hours

$6.00 compute

4 GiB × 100 hours, billed by the second. Keeping 20 GiB of billable incremental data for a full billing month adds $0.40. CPU is derived from memory by the platform; choose a tier that fits your workload.

Understand storage billing →

Before migrating from Google Compute Engine Windows Server

  1. Inventory Windows image/machine, guest hibernation setting, persistent/local disks, suspension deadline and all license/resource meters.
  2. Export portable files and configure compatible Linux agent stages while retaining Windows-native dependencies on suitable VMs.
  3. Test retained tools, required RAM continuity, root growth, paused files and complete machine/license/storage/network plus Linux runtime costs.

Common questions

Is Sandbox0 a drop-in Google Compute Engine Windows Server replacement?

Evaluate API compatibility and product scope. These products serve different core workflows, so a change may require a different architecture.

Does keeping files also keep a running agent?

Filesystem state and volatile process state are separate. Sandbox0 requires explicit compatible memory checkpoints to preserve running processes; its default filesystem resume starts fresh processes.

Sources and review scope

The Boat team's Battleships directory is the discovery source. References below describe the product and plan discussed on this page. Check current availability, regional terms and billing units before migrating. Where the cited material does not establish a capability or price, the comparison identifies that uncertainty.

Battleships research record ↗docs.cloud.google.com/compute/docs/instances/suspend-resume-instance ↗cloud.google.com/compute/disks-image-pricing ↗docs.cloud.google.com/compute/docs/disks/resize-persistent-disk ↗docs.cloud.google.com/compute/docs/instances/stop-start-instance ↗Sandbox0 RootFS capacity →

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