>>>As a test we have upgraded a machine with SQL server 2008R2 to Windows 10 this morning.
>>>
>>>Prior to the upgrade SQL server performed fine. However after the upgrade especially table scan operations where one or two orders of magnitude slower.
>>>
>>>Any idea, what could be at play here? The specs of the machine are just fine intel I5, 3.1Ghz and 8 Gb of RAM. The task manager does not reveal anything stressing resources.
>>>
>>>Walter,
>>
>>SQL Server 2008 and SQL Server 2008 R2 are not supported by Windows 10. Check
>>
>>https://social.technet.microsoft.com/Forums/en-US/bb5f2199-f283-4249-a029-53978d637148/sql-service-stops-working-after-windows-10-upgrade?forum=sqldatabaseengine
>>
>>and the article referenced in that thread https://support.microsoft.com/en-us/kb/2681562
>
>Thanks for this, but I do not have any issues anymore with the SQL 2008R2 install. After a restart it seems to work fine. But I'll keep this in mind anyways.
>
>Walter,

Hi Walter,

I can't dare move to W10 yet, I just clicked yet and I'm in the wait list. How it's going?