Migrating From Linux to Windows Hosting in Nepal Without Breaking Your Site

Moving between two Linux hosts is a relatively contained job, files and a MySQL database, mostly compatible end to end. Moving from Linux to Windows hosting is a genuinely bigger undertaking, usually because the reason for the move is a new or rebuilt application that needs ASP.NET or MSSQL, which means more than files are changing. Here's how to do this migration correctly, in order, without breaking the live site along the way.

Step 1: Confirm Why You're Actually Moving

Most Linux-to-Windows migrations happen for one of two reasons: the site or application has been rebuilt on ASP.NET, or new business software (often accounting or ERP) specifically requires MSSQL. Confirm which applies, because it determines whether this is a full application rebuild deployment (new code, new database) or a genuine like-for-like migration where only the hosting environment changes. The two are handled very differently.

Step 2: Set Up the Windows Environment Fully Before Cutover

Provision the Windows hosting plan, configure IIS and the correct .NET version, and get the site or application deployed and tested there first, using a temporary URL or the server's IP address. Nothing about the live site changes yet, this is where you catch configuration issues while there's no visitor-facing risk.

Step 3: Handle the Database Conversion Carefully

If you're moving from MySQL to MSSQL specifically (not just moving files to a new server), this is the step that needs the most care. MySQL and MSSQL have different data types, different SQL syntax for some operations, and different auto-increment and indexing conventions, a direct export/import rarely works cleanly without adjustment. Use a proper migration tool (SQL Server Migration Assistant handles MySQL-to-MSSQL conversion reasonably well) rather than attempting a manual find-and-replace on a raw SQL export, and test the converted database thoroughly against the new application before going further.

Step 4: Migrate Email Separately

As with any hosting migration, don't assume email moves automatically with the site. Plan mailbox migration independently, or better, move business email to a dedicated business email service so future hosting changes never touch it again. Confirm MX records and mail client settings before touching anything else related to the site.

Step 5: Lower DNS TTL and Prepare for Cutover

Lower your domain's DNS TTL to around 300 seconds, 24–48 hours before the planned cutover, so the eventual switch propagates in minutes rather than the default day or two some registrars use. This is the single biggest factor in how much "downtime" a migration appears to have, and it's entirely within your control ahead of time.

Step 6: Cut Over and Verify Immediately

Point your domain to the new Windows hosting server's IP, and immediately check: SSL active, every page loading correctly, forms and any database writes working, email flowing if it moved too. Keep the old Linux hosting account active and untouched for at least a week as a fallback rather than cancelling same-day, no matter how clean the migration looked.

What Doesn't Change

Your URL structure and content stay the same if you keep the same domain, so search rankings aren't directly affected by the hosting environment change itself; Google doesn't penalize a same-domain infrastructure move. The risks are self-inflicted ones: cancelling the old host too early, missing that email lived there too, or skipping proper testing of the database conversion before cutover.

WebsNP handles Linux-to-Windows migrations for businesses moving to Windows hosting plans, including guidance through the MSSQL conversion where that's needed, scheduled at a low-traffic time with the old host kept live as a safety net. Message us on WhatsApp with details of your current site and what's driving the move to Windows, and we'll map out the exact steps before anything changes.