Please try updating to Crimson 17.6.2.
As there has been no update on this thread, I am locking the discussion.
If you are still experiencing the same issue, please start a new discussion and provide the essential information required by clicking this link > https://community.amd.com/thread/196209
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Win7 requires a complete OS update. Windows Update.
Open a command prompt as Administrator and copy/paste sfc/scannow and let it search for and repair any system files corruption. If errors are found that could not be fixed, run this > Fix SFC /scannow errors that were not repaired