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JTG Systems
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JTG Systems
Expert diagnosis of thermal throttling • Memory errors • Driver conflicts • Event Viewer analysis • Same-day instability repair with 90-day warranty
With over 20 years of service in the Niagara region backed by 1,100+ Google Reviews, our team gets the job done fast and right. We offer a 90 Day Warranty on all workmanship.
Fix System CrashesAt JTG Systems, we specialize in diagnosing and fixing the most frustrating system instability issues plaguing Dell, HP, Lenovo, and ASUS laptops across the Niagara region. Our certified technicians use professional-grade diagnostic tools to identify the root cause of random reboots, system crashes, freezing, and thermal throttling issues.
📞 JTG Systems Emergency Line
(905) 892-4555
Same-day emergency diagnostics available
⚡ Same-Day Service Available
Emergency appointments available Monday-Saturday. Professional diagnosis in 30 minutes or less.
Hardware instability typically causes sudden, catastrophic failures like instant reboots, BSODs, or system lockups under load.
Software instability causes gradual degradation, application-specific crashes, or boot problems that worsen over time.
Check Windows Event Viewer for Critical errors (Event ID 41, 6008, 55, 1001) in the last 7 days
HWInfo64 sensor analysis, memory testing, thermal monitoring, power rail voltage verification
Safe Mode boot test, driver conflict detection, malware scan, registry integrity check
Prime95 CPU stress, FurMark GPU test, MemTest86 memory validation, sustained load monitoring
Our first diagnostic step involves analyzing Windows Event Viewer for critical system errors that reveal instability patterns:
We use professional-grade diagnostic tools to identify hardware instability before it causes catastrophic failure:
Our systematic approach to identifying and resolving software-related instability:
If the system is stable in Safe Mode, we know it's a software issue and focus on:
We systematically identify problematic drivers causing system instability:
After identifying and fixing the root cause, we perform rigorous stress testing to ensure your system is truly stable before returning it to you.
We use Prime95 and Intel Burn Test to stress-test your CPU under maximum load for 2+ hours, monitoring for crashes, thermal throttling, or instability.
MemTest86 runs overnight to detect intermittent memory errors that cause random crashes and data corruption.
FurMark GPU stress testing identifies graphics-related instability, overheating, and power delivery issues.
We simulate typical user workloads to ensure stability during actual daily use scenarios.
Don't wait for system crashes to ruin your productivity. Our professional maintenance services keep your Dell, HP, Lenovo, or ASUS system running stable year-round.
Professional diagnostic monitoring service
Remote service available - Call for pricing
Comprehensive hardware maintenance
In-shop service required - Call for pricing
Expert-level preventive service
Full diagnostic included - Call for pricing
System instability often develops gradually through dust accumulation, thermal paste degradation, and driver conflicts. Our professional maintenance catches these issues before they cause crashes, data loss, or expensive hardware failures. Don't risk DIY repairs that could void warranties or cause additional damage.
We start with Windows Event Viewer analysis and Safe Mode boot testing. If the system is stable in Safe Mode, it's typically software-related (drivers, malware, registry). If it crashes in Safe Mode or during BIOS operations, we focus on hardware diagnostics including memory testing, thermal analysis, and power system validation.
Random reboots are typically caused by thermal throttling (CPU/GPU overheating), power supply instability, or memory errors. Dell Inspiron and HP Pavilion series are particularly susceptible to dust-clogged cooling systems. We use HWInfo64 to monitor temperatures and identify if thermal throttling triggers Event ID 41 (Kernel-Power) shutdowns.
Yes, especially after Windows 10 22H2 or Windows 11 23H2 updates conflicting with older WiFi, graphics, or chipset drivers. We use Driver Verifier to stress-test problematic drivers and systematically update or rollback conflicting drivers. Anti-cheat software (FACEIT, Vanguard) can also conflict with Windows HVCI memory integrity.
Initial diagnosis typically takes 30 minutes using our "Stability Screen" protocol. Simple software fixes (driver updates, registry repair) can be completed same-day. Hardware issues requiring component replacement may take 2-3 business days. Comprehensive stress testing adds 24-48 hours to ensure long-term stability.
We provide a 90-day warranty covering the specific instability issue we repair. This includes free return service if the same symptoms reoccur within 90 days. Hardware component replacements carry manufacturer warranty. Our warranty covers parts, labor, and re-diagnosis if instability returns.
"My Dell Inspiron was crashing 5+ times per day with random BSODs. JTG Systems diagnosed thermal throttling from a clogged fan and replaced the thermal paste. Haven't had a single crash in 3 months!"
- Jennifer, Small Business Owner, St. Catharines
"Windows 11 update killed my HP laptop - constant freezing and Event ID 41 errors. They identified a WiFi driver conflict, updated everything, and stress-tested for stability. Perfect repair service!"
- Marcus, Engineering Student, Welland
With over 1,100+ 5 star Google reviews and expertise in Dell, HP, Lenovo, ASUS system diagnostics, trust JTG Systems for professional instability repair with comprehensive stress testing and 90-day warranty.