Operating System Reinstall
When a computer is riddled with malware, corrupted, or just bogged down beyond repair, a clean operating-system install is often the fastest fix. We back up your files first, do a fresh install, then reinstall drivers, updates and your everyday programs.
Yuriy — owner, JY Computer Services · repairing computers and electronics since 2007 · Updated September 2026
When a clean install is the right call
- Deep malware or ransomware that isn’t worth cleaning piecemeal
- Windows or macOS that won’t boot or is badly corrupted
- Years of clutter that a tune-up can’t fix
- Preparing a computer to sell or hand down
- Moving a healthy drive into a fresh, supported OS version
What you get back
A clean, fully updated system with the correct drivers for your exact hardware, your data restored, browsers and email signed in, and your main programs reinstalled. We hand it back configured and ready, not as a bare desktop.
Frequently asked questions
How much does a Windows or macOS reinstall cost in Marlboro, NJ?
An operating system reinstall runs $75 to $370, around $168 typical. The low end is a straight wipe and reload; the higher end includes backing up and restoring your data, reinstalling drivers and setting your core software back up. We confirm the scope with you first.
Will I lose my files if you reinstall the operating system?
Only if you choose the fast, no-backup option. Our standard reinstall backs your documents, photos and key data up first, then restores them after the clean install. Program installers and licences you have on hand speed the rebuild.
How long does an operating system reinstall take?
Most reinstalls are ready in one to two business days once your data is backed up. Older machines and large data sets take longer, because copying the backup off and restoring it afterward is the slow part — the clean install itself only takes an hour or two. We confirm a realistic date when you drop the computer off in Marlboro.
Should I reinstall Windows or just replace the computer?
If the hardware is sound, a clean install makes it run like new for far less than a replacement. If the drive is failing or the machine is very old, we'll recommend an [SSD upgrade](/services/hardware-upgrades/) or a new machine instead.