SQL SERVER Installation issue || There are validation errors on this page.
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Cause :
Issue occur due to files and folder are compressed and not fully permission to install the software.

Solution :
Regarding this issue you are requested to please uncompressed the folder for SQL SERVER (C:\Program Files or C:\Program Files (x86)).
For this please Right click on Microsoft SQL SERVER folder > Go to Properties > Click on Advanced..
Un-Check Compress contents to save disk space
Un-Compress this folder and then Restart the system.
Now try to install the SQL SERVER in this system.
Hope this helps.