Microsoft lists these recommended training resources for the Microsoft TS:Windows Internals exam:

• Windows Internals Book (Mark Russinovich et al.)

Official training plus consistent self-testing is a proven combination — the 68 practice questions from Prep4away handle the second half.

Prep4away issues a full refund if you take the Microsoft TS:Windows Internals exam within 60 days of purchase and do not pass. The policy does not apply if the exam is taken within 3 days of purchase, if the exam was never actually taken, or to free materials or expired orders, and the candidate name must match the payer name. Claims require a scan of your enrollment slip and the official Score Report PDF, submitted within 2 days of the exam, and are processed within 7 days. As an alternative, you can exchange for two free exam products of equal value while keeping your original update service. Orders arrive by email within 1 minute — contact support if nothing shows up within 2 hours.

The Microsoft TS:Windows Internals exam presents 45–68 with 120 minutes to complete them. Practicing under the same clock in the Prep4away Desktop Test Engine makes the real pacing feel routine.

Proctored onsite at Prometric test centers; retired Registration for the Microsoft TS:Windows Internals exam goes through these official channels:

• Prometric (historical)

After booking, the Prep4away practice questions reach your inbox within 1 minute — preparation can start the same day.

The official Microsoft TS:Windows Internals outline defines 5 domains. The leading three are I/O System and Storage (20%), System Mechanisms (20%), and Debugging and Troubleshooting (20%). See the complete list in the topics section above — the 68 practice questions at Prep4away cover every domain.

The 070-660 exam is a Microsoft certification exam built on the Microsoft TS:Windows Internals syllabus shown above. As information technology keeps reshaping how industries operate, certified skills remain one of the most portable proofs of capability in 2026. Prep4away prepares you with 68 practice questions in PDF, Desktop Test Engine, and Online Test Engine formats.

Passing the Microsoft TS:Windows Internals exam requires 700 (scale 1–1000), and the registration fee is Retired, historical price ~$125–$150 USD. A retake costs the same amount again — a practical reason to verify your readiness with the Prep4away engines before booking.

The full Microsoft TS:Windows Internals preparation set at an affordable, small-profits price: 68 practice questions in three formats — a printable, expert-prepared PDF with instant download; a Desktop Test Engine for Windows that simulates the real exam with two practice modes and works offline; and an Online Test Engine for any browser on Windows, Mac, Android, and iOS with test history and performance review. A free demo is available anytime, updates are free for 365 days, renewal afterward is 50% off, installations are unlimited, and checkout is McAfee-secured with automatic encryption of your personal information.

No formal prerequisites; recommended deep Windows OS knowledge Policies change over time, so confirm the current rules on the official Microsoft exam page before scheduling.