Hi:
As mentioned, Windows 7 has been out of support for many years and is - therefore - both obsolete and insecure, even with security applications. Your data, financial information and overall security are at risk. Moreover, as you are experiencing first-hand, maintenance/reinstalling and recovery from a catastrophe (hardware failure, malware, ransomware, OS corruption) will become progressively harder over time, especially without advanced computing skills, a robust backup plan, etc.
Better, safer options include:
1) purchase of a new computer with a supported, modern Windows version;
2) upgrading hardware on the current rig & clean installing at least Windows 10 (you will need to purchase a legit license, as the free 7->10 upgrade path closed a long time ago) to buy time until Windows 10 support ends in October 2025;
3) converting this computer to Linux
Having said all that (& assuming you are not already infected, based on the redirect to a fake/Russian website): If you DO proceed with attempts to install MB on Windows 7, be aware that (as of now) it appears that only MB 4 supports Windows 7. The current version of MB (version 5) does not & probably will not.
You will need to get MB 4 from the offline installer, as AFAIK new program downloads will offer only MB 5.
https://downloads.malwarebytes.com/file/mb4_offline
https://support.malwarebytes.com/hc/en-us/articles/360039021313-Malwarebytes-for-Windows-v4-support-for-Windows-7
https://forums.malwarebytes.com/topic/274496-how-to-update-windows-7-to-the-latest-security-updates/
I don’t think MB 5 supports Windows 7 and it likely will not in the future:
https://forums.malwarebytes.com/topic/308300-error-on-fresh-windows-7-install/
Respectfully submitted