Most Windows 7 DVD's supplied with a PC are OEM versions not the original Retail version and you cannot run a Repair Install from that type of disc.
Try downloading a genuine retail copy that matches what you have on your system, trying any other version will fail. It should be the same as the version written on the Product key sticker that should be visible somewhere on the PC.
Please go here: Windows 7 ISO downloads and download the version of Windows 7 that matches what you have on your PC.
If you have downloaded the ISO on a Windows 7 PC right click the ISO file, select Open With, then select Windows Disc Image Burning Tool then follow the prompts.
For PC's using other versions of Windows you must burn the ISO image to a DVD using an ISO image burner, copying the ISO to a DVD will not work, if you do not have an ISO burner download this free software and follow the instructions below to burn the disc.ImgBurn
Install the program and start the application. Select the top left hand option to burn image file to disk and then on the next window click on the small yellow folder icon and browse to the ISO file you wish to burn. Then click on the two grey discs with the arrow in between (bottom left) and leave it to complete the operation.
Once done, please go here Windows 7 Repair Install and follow the instructions.
When complete, test the system to see if the original problems have been resolved.
Try downloading a genuine retail copy that matches what you have on your system, trying any other version will fail. It should be the same as the version written on the Product key sticker that should be visible somewhere on the PC.
Please go here: Windows 7 ISO downloads and download the version of Windows 7 that matches what you have on your PC.
If you have downloaded the ISO on a Windows 7 PC right click the ISO file, select Open With, then select Windows Disc Image Burning Tool then follow the prompts.
For PC's using other versions of Windows you must burn the ISO image to a DVD using an ISO image burner, copying the ISO to a DVD will not work, if you do not have an ISO burner download this free software and follow the instructions below to burn the disc.ImgBurn
Install the program and start the application. Select the top left hand option to burn image file to disk and then on the next window click on the small yellow folder icon and browse to the ISO file you wish to burn. Then click on the two grey discs with the arrow in between (bottom left) and leave it to complete the operation.
Once done, please go here Windows 7 Repair Install and follow the instructions.
When complete, test the system to see if the original problems have been resolved.