Remove malware
We check for viruses, trojans, unwanted programs and other malware. Depending on the findings, we clean the system or discuss a secure fresh installation.
H.T.COMPUTER · YOUR IT SPECIALIST IN KARLSRUHE
Repairs. Virus removal. Personal service.
Your contact for computers and IT – from trusted older devices to the latest generation.
HAVING A TECHNICAL PROBLEM?
PC won't start, Wi-Fi drops out, printer not working or important files missing? Tell us what happened. We examine, explain and take care of the next steps.
VIRUS REMOVAL & HELP AFTER ATTACKS
Opened a suspicious email? Allowed a supposed support agent to access your computer over the phone? Or is your computer suddenly behaving strangely? We take your concerns seriously and help with technical checks and cleanup.
We check for viruses, trojans, unwanted programs and other malware. Depending on the findings, we clean the system or discuss a secure fresh installation.
We examine affected devices for unwanted remote access, installed programs and suspicious changes, and help secure your equipment again.
We help inspect affected systems, protect devices and accounts, and restore a usable system.
First, we discuss what happened and examine the device. We then explain the issues found and possible steps: removing malware, securing access, installing updates, backing up data or reinstalling the system.
For encrypted or damaged data, we assess recovery options. Successful data recovery or full restoration cannot be promised in advance.
INK & TONER REFILL CLINIC KARLSRUHE
Cartridge refilling is part of our service. Bring your empty cartridge: we check whether it can be refilled and advise on ink, toner and suitable alternatives.
See refilling & loyalty card ↓01 · CheckCheck the cartridge and its suitability for refilling.
02 · RefillRefill suitable cartridges and keep using them.
03 · Find alternativesCompatible cartridges, toner or original products – matched to your printer.
QUICK HELP. THOROUGH WORK.
From a beloved older PC to a current laptop: we find the cause and discuss which repair or upgrade makes sense. Even if you bought your device elsewhere.
Our motto for fast repairs: depending on the fault, work required and available parts, same-day collection may be possible. We inspect your device and agree the collection time with you.
Immediate repairs may be possible without an appointment. Timing and feasibility depend on the fault and available spare parts.

EXPERIENCE
ELECTRONICS / SOLDERING / DIAGNOSTICSWHEN SMALL DETAILS MATTER
A fault doesn't have to mean the end of an entire device. We also offer soldering on electronic components and check whether a component-level repair is possible.
Bring your device or the affected component. After inspection, we discuss the possible repair and the work involved.
Ask about soldering ↗SUSTAINABILITY STARTS WITH CONTINUED USE
Examine faults and fix them precisely where repair makes technical and economic sense.
More memory, suitable components or a fresh setup can give existing equipment a new lease of life.
Our Ink & Toner Refill Clinic checks cartridges and offers refilling and suitable alternatives.
If a new purchase replaces an old device, ask us about proper disposal as well.
MORE THAN A REPAIR WORKSHOP
We also sell new devices and accessories: computers and laptops, monitors, printers and networking equipment, as well as servers and suitable components.
For home, office or gaming – we advise according to your needs and budget. We discuss availability and specifications with you personally.
Ask about suitable equipment ↗
Gaming PCs too.1996 — 2026 · THE ORIGINAL IN KARLSRUHE
We have guided our customers through the world of computers and IT since 1996. From older systems to the latest generation: experience, personal advice and careful work go hand in hand here.
The technology and repair images are AI-generated illustrations. They do not depict the actual premises or specific sales offers.
In the heart of KarlsruheKaiserallee 25a · 76133 Karlsruhe
Our opening hoursMonday: 10:00–19:00
Tuesday: 10:00–19:00
Wednesday: 10:00–19:00
Thursday: 10:00–19:00
Friday: 10:00–19:00
Saturday: Closed
Sunday: Closed
At our shop. At your place. Online.Workshop · On-site service · Remote support
OUR SERVICES
One contact, many solutions.
For households and businesses.

Diagnostics, system checks and repairs for older and newer devices. We discuss what is practical and possible with you.
We check startup issues, crashes, overheating and component faults. After diagnosis, we discuss repair, upgrades or a sensible alternative. Older PCs, current laptops, Macs and devices bought elsewhere are welcome.

Connection problems, router setup or a new network: we help at home and at your business.
We check the connection between your internet line, router and devices, help with Wi-Fi issues and set up networks. If the problem is with your provider, we explain our findings and the next steps. On-site appointments are arranged personally.

Important files missing or a drive not recognised? We assess recovery options and help set up a backup system.
We assess recovery options for missing files and unrecognised drives. For the future, we help with suitable backups. Effort and prospects depend on the damage; recovery cannot be guaranteed.

We help with printer and monitor problems and advise on replacements, setup, consumables and suitable accessories.
We investigate connection, driver and hardware issues and discuss repair or replacement. We also stock suitable cables, adapters, ink and toner. Our Ink & Toner Refill Clinic handles empty cartridges.

Install operating systems, set up programs, fix errors and remove malware – with clear, understandable advice.
We remove malware, examine suspicious programs and help after fraudulent emails, phone scams or unwanted remote access. If necessary, we reinstall the operating system and help secure your equipment.

Advice on servers, workstations and networks. Setup, maintenance and support for your business IT.
We advise on servers, workstations and network components, set up systems and help with maintenance and faults. Together we also plan backups and the on-site service you need.

We assess electronic component faults and carry out suitable soldering work. We determine the options and effort by examining the device.
We inspect electronic components and solder joints and carry out suitable soldering work. The possible repair can be assessed after examining the device or circuit board.

Computers, laptops, monitors, printers, servers and accessories. We find the right equipment for your needs.
PCs, laptops, monitors, printers, servers, components and accessories: we advise on suitable equipment and discuss availability and setup. Gaming is part of our offering, alongside office work and everyday use.

Advice and support for digital video surveillance and IP camera systems – tailored to your needs.
We help select, set up and maintain IP camera systems and their network equipment. We discuss your particular use and requirements individually.

Startup problems, no picture or a faulty port? We examine your gaming console and discuss repair options with you in Karlsruhe.
We examine the fault and establish which repairs are possible for your model. Work, parts and costs are discussed after diagnosis.
More information about console repairs ↗
New at H.T.Computer: we create websites for businesses, freelancers and clubs. Discussed with you personally, clearly designed and suited to smartphones, tablets and computers.
From the first idea to your finished website: we discuss your wishes, content and project scope. Features, schedule and costs are agreed with you before you place an order.
Enquire about a website ↗More about diagnostics, repairs and the next step for your device.
WE ALSO COME TO YOU
Bring your device to us, arrange an on-site visit or use remote support. Together we find the right approach.
In our workshopBring your device for personal advice. Immediate repairs may be possible without an appointment; we assess timing and feasibility on the device.
At your locationOn-site help with your IT, internet connection and network – by arrangement.
Via remote supportHelp on your screen without travelling. Call us before starting a connection.
INK & TONER REFILL CLINIC
We inspect your printer cartridge and advise on refilling. Alternatively, we offer compatible cartridges, toner and original products for your printer.
Ask about suitable suppliesOne stamp for each refilled cartridge.
After 10 refills, the 11th is free.
HELP FROM A DISTANCE
Our remote support helps you with computer problems over the internet, at home or at work. After arranging support by phone, download AnyDesk for Windows or Mac. Once you approve the connection, we can examine faults on your screen with you, adjust settings and resolve software problems.
Recording only with your consent: the recording remains at H.T.Computer for 14 days, solely to review and, if needed, correct the work performed. We can help without recording if you prefer. The phone call is not recorded.
Call: Tel: +49 721 8494111996–2026 · At home in Karlsruhe.
Here for your technology.
PERSONAL, NOT ANONYMOUS
H.T.Computer has stood for IT solutions, repairs and personal advice in Karlsruhe since 1996. We listen, look closely and find a solution that fits your needs.
Computer, Mac, tablet, smartphone or games console: talk to us about your device. We also help if you didn't buy it from us.
Get to know our shopCONTACT & DIRECTIONS
Personal. Clear. Direct.
We look forward to your enquiry.
Fax: +49 721 9851713
Monday10:00–19:00
Tuesday10:00–19:00
Wednesday10:00–19:00
Thursday10:00–19:00
Friday10:00–19:00
SaturdayClosed
SundayClosed
Ask about individual appointments & emergency service:
Service hotline +49 721 9851712