I recently noticed the avast free installation indeed causing a 'dirty' CheckSUR log on Win 7. Really strange.
Thought at first, these corruptions was made by a recent disk file data corruption, but it really seems a long known thing related to avast. I can even easily replicate this in VM.
I had to seek professional help at Sysnatives, to get the last unfixable component store entries repaired. And it doesn't really end here. Every time I reinstall avast via the uninstall utility, make a program update, or attempt repair avast, via the control panel, I have to do the other repairs all over again, to maintain a clean CheckSUR log.
I will state here though, I yet to experience anything bad with avast's functionality, nor with Windows Update. The remaining non-repairable component store entries are likely harmless to the system and may be possible to ignore.
I did however one time experienced some registry entries in CCleaner wouldn't go away, before the attached CheckSUR entries was repaired first. Don't think this is supposed to be normal.
ActiveX/COM problem VirtualBoxAsw.SessionAsw - {A4AB08B7-35EE-4f75-BE0A-D8F9630D755E} HKCR\VirtualBoxAsw.SessionAsw
ActiveX/COM problem VirtualBoxAsw.SessionAsw.1 - {A4AB08B7-35EE-4f75-BE0A-D8F9630D755E} HKCR\VirtualBoxAsw.SessionAsw.1
ActiveX/COM problem VirtualBoxAsw.VirtualBoxAsw - {F319F1B8-7587-4146-AF9C-0D6D77819BF1} HKCR\VirtualBoxAsw.VirtualBoxAsw
ActiveX/COM problem VirtualBoxAsw.VirtualBoxAsw.1 - {F319F1B8-7587-4146-AF9C-0D6D77819BF1} HKCR\VirtualBoxAsw.VirtualBoxAsw.1
ActiveX/COM problem VirtualBoxAsw.VirtualBoxClientAsw - {262E45B9-36DA-43ac-ABF4-C546A7EA3BFC} HKCR\VirtualBoxAsw.VirtualBoxClientAsw
ActiveX/COM problem VirtualBoxAsw.VirtualBoxClientAsw.1 - {262E45B9-36DA-43ac-ABF4-C546A7EA3BFC} HKCR\VirtualBoxAsw.VirtualBoxClientAsw.1
Entries from backup reg file:
[HKEY_CLASSES_ROOT\VirtualBoxAsw.SessionAsw]
@="SessionAsw Class"
[HKEY_CLASSES_ROOT\VirtualBoxAsw.SessionAsw\CLSID]
@="{A4AB08B7-35EE-4f75-BE0A-D8F9630D755E}"
[HKEY_CLASSES_ROOT\VirtualBoxAsw.SessionAsw\CurVer]
@="VirtualBoxAsw.SessionAsw.1"
[HKEY_CLASSES_ROOT\VirtualBoxAsw.SessionAsw.1]
@="SessionAsw Class"
[HKEY_CLASSES_ROOT\VirtualBoxAsw.SessionAsw.1\CLSID]
@="{A4AB08B7-35EE-4f75-BE0A-D8F9630D755E}"
[HKEY_CLASSES_ROOT\VirtualBoxAsw.VirtualBoxAsw]
@="VirtualBoxAsw Class"
[HKEY_CLASSES_ROOT\VirtualBoxAsw.VirtualBoxAsw\CLSID]
@="{F319F1B8-7587-4146-AF9C-0D6D77819BF1}"
[HKEY_CLASSES_ROOT\VirtualBoxAsw.VirtualBoxAsw\CurVer]
@="VirtualBoxAsw.VirtualBoxAsw.1"
[HKEY_CLASSES_ROOT\VirtualBoxAsw.VirtualBoxAsw.1]
@="VirtualBoxAsw Class"
Technical information for reference:
Microsoft Windows 7 Ultimate
Version 6.1.7601 Service Pack 1 Build 7601
Avast Free:
19.5.2378 (build 19.5.4444.495)
Definition version: 190523-4
UI version 1.0.370