Certified Technicians · Luxembourg & Northern France
Formatting and Installation
of Operating Systems
Professional computer formatting and clean installation of Windows 10 & 11 in Luxembourg and France. Free diagnosis, data migration included.
About the service
PROFESSIONAL WINDOWS FORMATTING
Calistech performs full formatting and clean installation of operating systems to restore your computer's original speed.
Formatting resolves extreme slowness, blue screens of death (BSOD), system file corruption, or boot failures.
We always include the reinstallation of official hardware drivers and secure activation of your user license.
We perform a secure backup and migration of your documents, photos, and bookmarks to the new system.
Services
- Windows 10 Home / Pro
- Windows 11 Home / Pro
- macOS (Apple Mac)
- Linux Distributions
WHAT WE INCLUDE
Each operating system formatting and installation includes these crucial steps:
Clean OS Installation
Formatting the disk and clean installing from scratch, free of manufacturer bloatware.
Driver Configuration
Installing updated official drivers for chipset, graphics, audio, and network card.
Data Migration
Safeguarding and migrating all your personal files securely to the new operating system.
System Updates
Downloading and installing the latest Microsoft security patches and updates.
Essential Software
Installing web browsers (Chrome, Edge), PDF readers, Office suite, and free antivirus.
Hardware Health Check
Analyzing hard disk drive (HDD/SSD) health and RAM memory to ensure stability.
Our differences
WHY CHOOSE CALISTECH
We handle emergencies in under 24 hours — because your productivity cannot stop.
Mandatory backup before any intervention. Your files are never at risk.
No surprises. We present the total cost before starting any job.
We travel to your home or company in Luxembourg and northern France.
Guaranteed work. If the problem returns, we fix it at no extra cost.
Support in Portuguese and French for your total convenience.
Need to format your computer?
We will reply in less than 24h. Thank you for contacting us.
📞 +352 691 97 59 26 SEND MESSAGE✉ info@calistech.lu
📍 Luxembourg & France
🕐 Mon–Sat, 8am–8pm
We repair all brands
COMPREHENSIVE MULTI-BRAND SERVICES
Calistech provides technical support for all major brands — Dell, HP, Lenovo, ASUS, Acer, Apple, Samsung, Toshiba, and many others. Our technicians are ready to resolve any issue.
OS Formatting & Installation
Formatting resolves extreme slowness, blue screens of death (BSOD), system file corruption, or boot failures.
Request Support →Virus & Malware Removal
Calistech utilizes advanced deep analysis software to detect hidden threats that common antivirus programs miss.
Request Support →Performance Optimization
The system optimization performed by Calistech diagnoses all performance bottlenecks in your OS.
Request Support →Internal Cleaning & Thermal Paste
Constant high heat degrades original thermal paste, causing the system to throttle CPU speeds or shut down to prevent damage.
Request Support →Driver & Software Installation
Calistech diagnoses hardware issues and installs the latest stable official device drivers.
Request Support →Hardware Repair
Calistech repairs laptops of all brands, replacing damaged parts with fresh, warrantied components.
Request Support →Printers & Peripherals
Calistech configures network printers, allowing you to print from multiple computers, tablets, or smartphones.
Request Support →Home Technical Assistance
With Calistech's home technical assistance service, a qualified technician travels directly to your home or office.
Request Support →Brands we repair
OUR DIFFERENCES
TRUST AND
PROFESSIONALISM
Every intervention is treated with maximum rigor and transparency. Free diagnosis, clear quote — we only proceed with your consent.
Simple and transparent
HOW IT WORKS
Free diagnosis
We analyze your device and present the best options.
Data backup
We perform a full backup of your data before any work begins.
Formatting & Setup
Clean install of the chosen OS, activation and full configuration.
Delivery & Warranty
We deliver the tested equipment with all essential software installed.
Discover more
OTHER SERVICES WE PERFORM
Virus & Malware Removal
Complete removal of viruses, spyware, ransomware, and digital threats.
LEARN MORE →
Performance Optimization
Your slow computer back to fast speed. Full diagnosis and tuning.
LEARN MORE →
Internal Cleaning & Thermal Paste
Professional internal dust cleaning and replacement of thermal paste to prevent overheating.
LEARN MORE →
GET IN TOUCH
TODAY
Exclusive availability for customer support. Fill in the form or use our contact channels.